66991600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^2\times {\mathrm{991}}^1$

素因数の和:1035

約数の個数: 90

約数和(自身を含む): 174456096

約数和(自身を除く): 107464496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 169, 200, 208, 260, 325, 338, 400, 520, 650, 676, 845, 991, 1040, 1300, 1352, 1690, 1982, 2600, 2704, 3380, 3964, 4225, 4955, 5200, 6760, 7928, 8450, 9910, 12883, 13520, 15856, 16900, 19820, 24775, 25766, 33800, 39640, 49550, 51532, 64415, 67600, 79280, 99100, 103064, 128830, 167479, 198200, 206128, 257660, 322075, 334958, 396400, 515320, 644150, 669916, 837395, 1030640, 1288300, 1339832, 1674790, 2576600, 2679664, 3349580, 4186975, 5153200, 6699160, 8373950, 13398320, 16747900, 33495800, 66991600]

約数ペア:

[(1, 66991600), (2, 33495800), (4, 16747900), (5, 13398320), (8, 8373950), (10, 6699160), (13, 5153200), (16, 4186975), (20, 3349580), (25, 2679664), (26, 2576600), (40, 1674790), (50, 1339832), (52, 1288300), (65, 1030640), (80, 837395), (100, 669916), (104, 644150), (130, 515320), (169, 396400), (200, 334958), (208, 322075), (260, 257660), (325, 206128), (338, 198200), (400, 167479), (520, 128830), (650, 103064), (676, 99100), (845, 79280), (991, 67600), (1040, 64415), (1300, 51532), (1352, 49550), (1690, 39640), (1982, 33800), (2600, 25766), (2704, 24775), (3380, 19820), (3964, 16900), (4225, 15856), (4955, 13520), (5200, 12883), (6760, 9910), (7928, 8450)]