19925360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 240

約数和(自身を含む): 64120896

約数和(自身を除く): 44195536

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 23, 26, 28, 34, 35, 40, 46, 49, 52, 56, 65, 68, 70, 80, 85, 91, 92, 98, 104, 112, 115, 119, 130, 136, 140, 161, 170, 182, 184, 196, 208, 221, 230, 238, 245, 260, 272, 280, 299, 322, 340, 364, 368, 391, 392, 442, 455, 460, 476, 490, 520, 560, 595, 598, 637, 644, 680, 728, 782, 784, 805, 833, 884, 910, 920, 952, 980, 1040, 1105, 1127, 1190, 1196, 1274, 1288, 1360, 1456, 1495, 1547, 1564, 1610, 1666, 1768, 1820, 1840, 1904, 1955, 1960, 2093, 2210, 2254, 2380, 2392, 2548, 2576, 2737, 2990, 3094, 3128, 3185, 3220, 3332, 3536, 3640, 3910, 3920, 4165, 4186, 4420, 4508, 4760, 4784, 5083, 5096, 5474, 5635, 5980, 6188, 6256, 6370, 6440, 6664, 7280, 7735, 7820, 8330, 8372, 8840, 9016, 9520, 10166, 10192, 10465, 10829, 10948, 11270, 11960, 12376, 12740, 12880, 13328, 13685, 14651, 15470, 15640, 16660, 16744, 17680, 18032, 19159, 20332, 20930, 21658, 21896, 22540, 23920, 24752, 25415, 25480, 27370, 29302, 30940, 31280, 33320, 33488, 35581, 38318, 40664, 41860, 43316, 43792, 45080, 50830, 50960, 54145, 54740, 58604, 61880, 66640, 71162, 73255, 76636, 81328, 83720, 86632, 90160, 95795, 101660, 108290, 109480, 117208, 123760, 142324, 146510, 153272, 167440, 173264, 177905, 191590, 203320, 216580, 218960, 234416, 249067, 284648, 293020, 306544, 355810, 383180, 406640, 433160, 498134, 569296, 586040, 711620, 766360, 866320, 996268, 1172080, 1245335, 1423240, 1532720, 1992536, 2490670, 2846480, 3985072, 4981340, 9962680, 19925360]

約数ペア:

[(1, 19925360), (2, 9962680), (4, 4981340), (5, 3985072), (7, 2846480), (8, 2490670), (10, 1992536), (13, 1532720), (14, 1423240), (16, 1245335), (17, 1172080), (20, 996268), (23, 866320), (26, 766360), (28, 711620), (34, 586040), (35, 569296), (40, 498134), (46, 433160), (49, 406640), (52, 383180), (56, 355810), (65, 306544), (68, 293020), (70, 284648), (80, 249067), (85, 234416), (91, 218960), (92, 216580), (98, 203320), (104, 191590), (112, 177905), (115, 173264), (119, 167440), (130, 153272), (136, 146510), (140, 142324), (161, 123760), (170, 117208), (182, 109480), (184, 108290), (196, 101660), (208, 95795), (221, 90160), (230, 86632), (238, 83720), (245, 81328), (260, 76636), (272, 73255), (280, 71162), (299, 66640), (322, 61880), (340, 58604), (364, 54740), (368, 54145), (391, 50960), (392, 50830), (442, 45080), (455, 43792), (460, 43316), (476, 41860), (490, 40664), (520, 38318), (560, 35581), (595, 33488), (598, 33320), (637, 31280), (644, 30940), (680, 29302), (728, 27370), (782, 25480), (784, 25415), (805, 24752), (833, 23920), (884, 22540), (910, 21896), (920, 21658), (952, 20930), (980, 20332), (1040, 19159), (1105, 18032), (1127, 17680), (1190, 16744), (1196, 16660), (1274, 15640), (1288, 15470), (1360, 14651), (1456, 13685), (1495, 13328), (1547, 12880), (1564, 12740), (1610, 12376), (1666, 11960), (1768, 11270), (1820, 10948), (1840, 10829), (1904, 10465), (1955, 10192), (1960, 10166), (2093, 9520), (2210, 9016), (2254, 8840), (2380, 8372), (2392, 8330), (2548, 7820), (2576, 7735), (2737, 7280), (2990, 6664), (3094, 6440), (3128, 6370), (3185, 6256), (3220, 6188), (3332, 5980), (3536, 5635), (3640, 5474), (3910, 5096), (3920, 5083), (4165, 4784), (4186, 4760), (4420, 4508)]