21298706240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7481}}^1$

素因数の和:7577

約数の個数: 224

約数和(自身を含む): 61300205568

約数和(自身を除く): 40001499328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 41, 56, 62, 64, 70, 80, 82, 112, 124, 140, 155, 160, 164, 205, 217, 224, 248, 280, 287, 310, 320, 328, 410, 434, 448, 496, 560, 574, 620, 656, 820, 868, 992, 1085, 1120, 1148, 1240, 1271, 1312, 1435, 1640, 1736, 1984, 2170, 2240, 2296, 2480, 2542, 2624, 2870, 3280, 3472, 4340, 4592, 4960, 5084, 5740, 6355, 6560, 6944, 7481, 8680, 8897, 9184, 9920, 10168, 11480, 12710, 13120, 13888, 14962, 17360, 17794, 18368, 20336, 22960, 25420, 29924, 34720, 35588, 37405, 40672, 44485, 45920, 50840, 52367, 59848, 69440, 71176, 74810, 81344, 88970, 91840, 101680, 104734, 119696, 142352, 149620, 177940, 203360, 209468, 231911, 239392, 261835, 284704, 299240, 306721, 355880, 406720, 418936, 463822, 478784, 523670, 569408, 598480, 613442, 711760, 837872, 927644, 1047340, 1159555, 1196960, 1226884, 1423520, 1533605, 1623377, 1675744, 1855288, 2094680, 2147047, 2319110, 2393920, 2453768, 2847040, 3067210, 3246754, 3351488, 3710576, 4189360, 4294094, 4638220, 4907536, 6134420, 6493508, 7421152, 8116885, 8378720, 8588188, 9276440, 9508351, 9815072, 10735235, 12268840, 12987016, 14842304, 16233770, 16757440, 17176376, 18552880, 19016702, 19630144, 21470470, 24537680, 25974032, 32467540, 34352752, 37105760, 38033404, 42940940, 47541755, 49075360, 51948064, 64935080, 66558457, 68705504, 74211520, 76066808, 85881880, 95083510, 98150720, 103896128, 129870160, 133116914, 137411008, 152133616, 171763760, 190167020, 259740320, 266233828, 304267232, 332792285, 343527520, 380334040, 519480640, 532467656, 608534464, 665584570, 687055040, 760668080, 1064935312, 1331169140, 1521336160, 2129870624, 2662338280, 3042672320, 4259741248, 5324676560, 10649353120, 21298706240]

約数ペア:

[(1, 21298706240), (2, 10649353120), (4, 5324676560), (5, 4259741248), (7, 3042672320), (8, 2662338280), (10, 2129870624), (14, 1521336160), (16, 1331169140), (20, 1064935312), (28, 760668080), (31, 687055040), (32, 665584570), (35, 608534464), (40, 532467656), (41, 519480640), (56, 380334040), (62, 343527520), (64, 332792285), (70, 304267232), (80, 266233828), (82, 259740320), (112, 190167020), (124, 171763760), (140, 152133616), (155, 137411008), (160, 133116914), (164, 129870160), (205, 103896128), (217, 98150720), (224, 95083510), (248, 85881880), (280, 76066808), (287, 74211520), (310, 68705504), (320, 66558457), (328, 64935080), (410, 51948064), (434, 49075360), (448, 47541755), (496, 42940940), (560, 38033404), (574, 37105760), (620, 34352752), (656, 32467540), (820, 25974032), (868, 24537680), (992, 21470470), (1085, 19630144), (1120, 19016702), (1148, 18552880), (1240, 17176376), (1271, 16757440), (1312, 16233770), (1435, 14842304), (1640, 12987016), (1736, 12268840), (1984, 10735235), (2170, 9815072), (2240, 9508351), (2296, 9276440), (2480, 8588188), (2542, 8378720), (2624, 8116885), (2870, 7421152), (3280, 6493508), (3472, 6134420), (4340, 4907536), (4592, 4638220), (4960, 4294094), (5084, 4189360), (5740, 3710576), (6355, 3351488), (6560, 3246754), (6944, 3067210), (7481, 2847040), (8680, 2453768), (8897, 2393920), (9184, 2319110), (9920, 2147047), (10168, 2094680), (11480, 1855288), (12710, 1675744), (13120, 1623377), (13888, 1533605), (14962, 1423520), (17360, 1226884), (17794, 1196960), (18368, 1159555), (20336, 1047340), (22960, 927644), (25420, 837872), (29924, 711760), (34720, 613442), (35588, 598480), (37405, 569408), (40672, 523670), (44485, 478784), (45920, 463822), (50840, 418936), (52367, 406720), (59848, 355880), (69440, 306721), (71176, 299240), (74810, 284704), (81344, 261835), (88970, 239392), (91840, 231911), (101680, 209468), (104734, 203360), (119696, 177940), (142352, 149620)]