20178196325

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{2699}}^1$

素因数の和:3099

約数の個数: 72

約数和(自身を含む): 30915432000

約数和(自身を除く): 10737235675

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 359, 425, 595, 833, 1225, 1795, 2513, 2699, 2975, 4165, 6103, 8975, 12565, 13495, 17591, 18893, 20825, 30515, 42721, 45883, 62825, 67475, 87955, 94465, 132251, 152575, 213605, 229415, 299047, 321181, 439775, 472325, 661255, 968941, 1068025, 1147075, 1495235, 1605905, 2248267, 3306275, 4844705, 6782587, 7476175, 8029525, 11241335, 16471997, 24223525, 33912935, 47478109, 56206675, 82359985, 115303979, 169564675, 237390545, 411799925, 576519895, 807127853, 1186952725, 2882599475, 4035639265, 20178196325]

約数ペア:

[(1, 20178196325), (5, 4035639265), (7, 2882599475), (17, 1186952725), (25, 807127853), (35, 576519895), (49, 411799925), (85, 237390545), (119, 169564675), (175, 115303979), (245, 82359985), (359, 56206675), (425, 47478109), (595, 33912935), (833, 24223525), (1225, 16471997), (1795, 11241335), (2513, 8029525), (2699, 7476175), (2975, 6782587), (4165, 4844705), (6103, 3306275), (8975, 2248267), (12565, 1605905), (13495, 1495235), (17591, 1147075), (18893, 1068025), (20825, 968941), (30515, 661255), (42721, 472325), (45883, 439775), (62825, 321181), (67475, 299047), (87955, 229415), (94465, 213605), (132251, 152575)]