20165202525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{419}}^1\times {\mathrm{3797}}^1$

素因数の和:4255

約数の個数: 72

約数和(自身を含む): 36197370720

約数和(自身を除く): 16032168195

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 419, 507, 845, 975, 1257, 2095, 2535, 3797, 4225, 5447, 6285, 10475, 11391, 12675, 16341, 18985, 27235, 31425, 49361, 56955, 70811, 81705, 94925, 136175, 148083, 212433, 246805, 284775, 354055, 408525, 641693, 740415, 1062165, 1234025, 1590943, 1770275, 1925079, 3208465, 3702075, 4772829, 5310825, 7954715, 9625395, 16042325, 20682259, 23864145, 39773575, 48126975, 62046777, 103411295, 119320725, 268869367, 310233885, 517056475, 806608101, 1344346835, 1551169425, 4033040505, 6721734175, 20165202525]

約数ペア:

[(1, 20165202525), (3, 6721734175), (5, 4033040505), (13, 1551169425), (15, 1344346835), (25, 806608101), (39, 517056475), (65, 310233885), (75, 268869367), (169, 119320725), (195, 103411295), (325, 62046777), (419, 48126975), (507, 39773575), (845, 23864145), (975, 20682259), (1257, 16042325), (2095, 9625395), (2535, 7954715), (3797, 5310825), (4225, 4772829), (5447, 3702075), (6285, 3208465), (10475, 1925079), (11391, 1770275), (12675, 1590943), (16341, 1234025), (18985, 1062165), (27235, 740415), (31425, 641693), (49361, 408525), (56955, 354055), (70811, 284775), (81705, 246805), (94925, 212433), (136175, 148083)]