1993408040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{4871}}^1$

素因数の和:5682

約数の個数: 64

約数和(自身を含む): 4837311360

約数和(自身を除く): 2843903320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 787, 1574, 3148, 3935, 4871, 6296, 7870, 9742, 10231, 15740, 19484, 20462, 24355, 31480, 38968, 40924, 48710, 51155, 63323, 81848, 97420, 102310, 126646, 194840, 204620, 253292, 316615, 409240, 506584, 633230, 1266460, 2532920, 3833477, 7666954, 15333908, 19167385, 30667816, 38334770, 49835201, 76669540, 99670402, 153339080, 199340804, 249176005, 398681608, 498352010, 996704020, 1993408040]

約数ペア:

[(1, 1993408040), (2, 996704020), (4, 498352010), (5, 398681608), (8, 249176005), (10, 199340804), (13, 153339080), (20, 99670402), (26, 76669540), (40, 49835201), (52, 38334770), (65, 30667816), (104, 19167385), (130, 15333908), (260, 7666954), (520, 3833477), (787, 2532920), (1574, 1266460), (3148, 633230), (3935, 506584), (4871, 409240), (6296, 316615), (7870, 253292), (9742, 204620), (10231, 194840), (15740, 126646), (19484, 102310), (20462, 97420), (24355, 81848), (31480, 63323), (38968, 51155), (40924, 48710)]