721000830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{12071}}^1$

素因数の和:12273

約数の個数: 64

約数和(自身を含む): 1898297856

約数和(自身を除く): 1177297026

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 181, 330, 362, 543, 905, 1086, 1810, 1991, 2715, 3982, 5430, 5973, 9955, 11946, 12071, 19910, 24142, 29865, 36213, 59730, 60355, 72426, 120710, 132781, 181065, 265562, 362130, 398343, 663905, 796686, 1327810, 1991715, 2184851, 3983430, 4369702, 6554553, 10924255, 13109106, 21848510, 24033361, 32772765, 48066722, 65545530, 72100083, 120166805, 144200166, 240333610, 360500415, 721000830]

約数ペア:

[(1, 721000830), (2, 360500415), (3, 240333610), (5, 144200166), (6, 120166805), (10, 72100083), (11, 65545530), (15, 48066722), (22, 32772765), (30, 24033361), (33, 21848510), (55, 13109106), (66, 10924255), (110, 6554553), (165, 4369702), (181, 3983430), (330, 2184851), (362, 1991715), (543, 1327810), (905, 796686), (1086, 663905), (1810, 398343), (1991, 362130), (2715, 265562), (3982, 181065), (5430, 132781), (5973, 120710), (9955, 72426), (11946, 60355), (12071, 59730), (19910, 36213), (24142, 29865)]