39918320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 101056032

約数和(自身を除く): 61137712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 208, 260, 262, 293, 520, 524, 586, 655, 1040, 1048, 1172, 1310, 1465, 1703, 2096, 2344, 2620, 2930, 3406, 3809, 4688, 5240, 5860, 6812, 7618, 8515, 10480, 11720, 13624, 15236, 17030, 19045, 23440, 27248, 30472, 34060, 38090, 38383, 60944, 68120, 76180, 76766, 136240, 152360, 153532, 191915, 304720, 307064, 383830, 498979, 614128, 767660, 997958, 1535320, 1995916, 2494895, 3070640, 3991832, 4989790, 7983664, 9979580, 19959160, 39918320]

約数ペア:

[(1, 39918320), (2, 19959160), (4, 9979580), (5, 7983664), (8, 4989790), (10, 3991832), (13, 3070640), (16, 2494895), (20, 1995916), (26, 1535320), (40, 997958), (52, 767660), (65, 614128), (80, 498979), (104, 383830), (130, 307064), (131, 304720), (208, 191915), (260, 153532), (262, 152360), (293, 136240), (520, 76766), (524, 76180), (586, 68120), (655, 60944), (1040, 38383), (1048, 38090), (1172, 34060), (1310, 30472), (1465, 27248), (1703, 23440), (2096, 19045), (2344, 17030), (2620, 15236), (2930, 13624), (3406, 11720), (3809, 10480), (4688, 8515), (5240, 7618), (5860, 6812)]