20175681012

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{55619}}^1$

素因数の和:55725

約数の個数: 96

約数和(自身を含む): 52078118400

約数和(自身を除く): 31902437388

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 43, 57, 74, 76, 86, 111, 114, 129, 148, 172, 222, 228, 258, 444, 516, 703, 817, 1406, 1591, 1634, 2109, 2451, 2812, 3182, 3268, 4218, 4773, 4902, 6364, 8436, 9546, 9804, 19092, 30229, 55619, 60458, 90687, 111238, 120916, 166857, 181374, 222476, 333714, 362748, 667428, 1056761, 2057903, 2113522, 2391617, 3170283, 4115806, 4227044, 4783234, 6173709, 6340566, 7174851, 8231612, 9566468, 12347418, 12681132, 14349702, 24694836, 28699404, 39100157, 45440723, 78200314, 88489829, 90881446, 117300471, 136322169, 156400628, 176979658, 181762892, 234600942, 265469487, 272644338, 353959316, 469201884, 530938974, 545288676, 1061877948, 1681306751, 3362613502, 5043920253, 6725227004, 10087840506, 20175681012]

約数ペア:

[(1, 20175681012), (2, 10087840506), (3, 6725227004), (4, 5043920253), (6, 3362613502), (12, 1681306751), (19, 1061877948), (37, 545288676), (38, 530938974), (43, 469201884), (57, 353959316), (74, 272644338), (76, 265469487), (86, 234600942), (111, 181762892), (114, 176979658), (129, 156400628), (148, 136322169), (172, 117300471), (222, 90881446), (228, 88489829), (258, 78200314), (444, 45440723), (516, 39100157), (703, 28699404), (817, 24694836), (1406, 14349702), (1591, 12681132), (1634, 12347418), (2109, 9566468), (2451, 8231612), (2812, 7174851), (3182, 6340566), (3268, 6173709), (4218, 4783234), (4773, 4227044), (4902, 4115806), (6364, 3170283), (8436, 2391617), (9546, 2113522), (9804, 2057903), (19092, 1056761), (30229, 667428), (55619, 362748), (60458, 333714), (90687, 222476), (111238, 181374), (120916, 166857)]