20912658270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{6451}}^1$

素因数の和:6870

約数の個数: 128

約数和(自身を含む): 58867015680

約数和(自身を除く): 37954357410

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 359, 430, 602, 645, 718, 903, 1077, 1290, 1505, 1795, 1806, 2154, 2513, 3010, 3590, 4515, 5026, 5385, 6451, 7539, 9030, 10770, 12565, 12902, 15078, 15437, 19353, 25130, 30874, 32255, 37695, 38706, 45157, 46311, 64510, 75390, 77185, 90314, 92622, 96765, 108059, 135471, 154370, 193530, 216118, 225785, 231555, 270942, 277393, 324177, 451570, 463110, 540295, 554786, 648354, 677355, 832179, 1080590, 1354710, 1386965, 1620885, 1664358, 1941751, 2315909, 2773930, 3241770, 3883502, 4160895, 4631818, 5825253, 6947727, 8321790, 9708755, 11579545, 11650506, 13895454, 16211363, 19417510, 23159090, 29126265, 32422726, 34738635, 48634089, 58252530, 69477270, 81056815, 97268178, 99584087, 162113630, 199168174, 243170445, 298752261, 486340890, 497920435, 597504522, 697088609, 995840870, 1394177218, 1493761305, 2091265827, 2987522610, 3485443045, 4182531654, 6970886090, 10456329135, 20912658270]

約数ペア:

[(1, 20912658270), (2, 10456329135), (3, 6970886090), (5, 4182531654), (6, 3485443045), (7, 2987522610), (10, 2091265827), (14, 1493761305), (15, 1394177218), (21, 995840870), (30, 697088609), (35, 597504522), (42, 497920435), (43, 486340890), (70, 298752261), (86, 243170445), (105, 199168174), (129, 162113630), (210, 99584087), (215, 97268178), (258, 81056815), (301, 69477270), (359, 58252530), (430, 48634089), (602, 34738635), (645, 32422726), (718, 29126265), (903, 23159090), (1077, 19417510), (1290, 16211363), (1505, 13895454), (1795, 11650506), (1806, 11579545), (2154, 9708755), (2513, 8321790), (3010, 6947727), (3590, 5825253), (4515, 4631818), (5026, 4160895), (5385, 3883502), (6451, 3241770), (7539, 2773930), (9030, 2315909), (10770, 1941751), (12565, 1664358), (12902, 1620885), (15078, 1386965), (15437, 1354710), (19353, 1080590), (25130, 832179), (30874, 677355), (32255, 648354), (37695, 554786), (38706, 540295), (45157, 463110), (46311, 451570), (64510, 324177), (75390, 277393), (77185, 270942), (90314, 231555), (92622, 225785), (96765, 216118), (108059, 193530), (135471, 154370)]