320121229900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1531}}^1\times {\mathrm{72101}}^1$

素因数の和:73675

約数の個数: 72

約数和(自身を含む): 719096318640

約数和(自身を除く): 398975088740

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 1531, 2900, 3062, 6124, 7655, 15310, 30620, 38275, 44399, 72101, 76550, 88798, 144202, 153100, 177596, 221995, 288404, 360505, 443990, 721010, 887980, 1109975, 1442020, 1802525, 2090929, 2219950, 3605050, 4181858, 4439900, 7210100, 8363716, 10454645, 20909290, 41818580, 52273225, 104546450, 110386631, 209092900, 220773262, 441546524, 551933155, 1103866310, 2207732620, 2759665775, 3201212299, 5519331550, 6402424598, 11038663100, 12804849196, 16006061495, 32012122990, 64024245980, 80030307475, 160060614950, 320121229900]

約数ペア:

[(1, 320121229900), (2, 160060614950), (4, 80030307475), (5, 64024245980), (10, 32012122990), (20, 16006061495), (25, 12804849196), (29, 11038663100), (50, 6402424598), (58, 5519331550), (100, 3201212299), (116, 2759665775), (145, 2207732620), (290, 1103866310), (580, 551933155), (725, 441546524), (1450, 220773262), (1531, 209092900), (2900, 110386631), (3062, 104546450), (6124, 52273225), (7655, 41818580), (15310, 20909290), (30620, 10454645), (38275, 8363716), (44399, 7210100), (72101, 4439900), (76550, 4181858), (88798, 3605050), (144202, 2219950), (153100, 2090929), (177596, 1802525), (221995, 1442020), (288404, 1109975), (360505, 887980), (443990, 721010)]