20333625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 37669632

約数和(自身を除く): 17336007

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 97, 125, 129, 195, 215, 291, 325, 375, 485, 559, 645, 975, 1075, 1261, 1455, 1625, 1677, 2425, 2795, 3225, 3783, 4171, 4875, 5375, 6305, 7275, 8385, 12125, 12513, 13975, 16125, 18915, 20855, 31525, 36375, 41925, 54223, 62565, 69875, 94575, 104275, 157625, 162669, 209625, 271115, 312825, 472875, 521375, 813345, 1355575, 1564125, 4066725, 6777875, 20333625]

約数ペア:

[(1, 20333625), (3, 6777875), (5, 4066725), (13, 1564125), (15, 1355575), (25, 813345), (39, 521375), (43, 472875), (65, 312825), (75, 271115), (97, 209625), (125, 162669), (129, 157625), (195, 104275), (215, 94575), (291, 69875), (325, 62565), (375, 54223), (485, 41925), (559, 36375), (645, 31525), (975, 20855), (1075, 18915), (1261, 16125), (1455, 13975), (1625, 12513), (1677, 12125), (2425, 8385), (2795, 7275), (3225, 6305), (3783, 5375), (4171, 4875)]