19920237785

素因数分解:

$5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{13649}}^1$

素因数の和:13735

約数の個数: 64

約数和(自身を含む): 29877120000

約数和(自身を除く): 9956882215

約数列:

[1, 5, 7, 23, 35, 37, 49, 115, 161, 185, 245, 259, 343, 805, 851, 1127, 1295, 1715, 1813, 4255, 5635, 5957, 7889, 9065, 12691, 13649, 29785, 39445, 41699, 63455, 68245, 95543, 208495, 291893, 313927, 477715, 505013, 668801, 1459465, 1569635, 2197489, 2525065, 3344005, 3535091, 4681607, 10987445, 11615299, 15382423, 17675455, 23408035, 24745637, 58076495, 76912115, 81307093, 107676961, 123728185, 173219459, 406535465, 538384805, 569149651, 866097295, 2845748255, 3984047557, 19920237785]

約数ペア:

[(1, 19920237785), (5, 3984047557), (7, 2845748255), (23, 866097295), (35, 569149651), (37, 538384805), (49, 406535465), (115, 173219459), (161, 123728185), (185, 107676961), (245, 81307093), (259, 76912115), (343, 58076495), (805, 24745637), (851, 23408035), (1127, 17675455), (1295, 15382423), (1715, 11615299), (1813, 10987445), (4255, 4681607), (5635, 3535091), (5957, 3344005), (7889, 2525065), (9065, 2197489), (12691, 1569635), (13649, 1459465), (29785, 668801), (39445, 505013), (41699, 477715), (63455, 313927), (68245, 291893), (95543, 208495)]