818090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 64

約数和(自身を含む): 1935360

約数和(自身を除く): 1117270

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 29, 31, 35, 58, 62, 65, 70, 91, 130, 145, 155, 182, 203, 217, 290, 310, 377, 403, 406, 434, 455, 754, 806, 899, 910, 1015, 1085, 1798, 1885, 2015, 2030, 2170, 2639, 2821, 3770, 4030, 4495, 5278, 5642, 6293, 8990, 11687, 12586, 13195, 14105, 23374, 26390, 28210, 31465, 58435, 62930, 81809, 116870, 163618, 409045, 818090]

約数ペア:

[(1, 818090), (2, 409045), (5, 163618), (7, 116870), (10, 81809), (13, 62930), (14, 58435), (26, 31465), (29, 28210), (31, 26390), (35, 23374), (58, 14105), (62, 13195), (65, 12586), (70, 11687), (91, 8990), (130, 6293), (145, 5642), (155, 5278), (182, 4495), (203, 4030), (217, 3770), (290, 2821), (310, 2639), (377, 2170), (403, 2030), (406, 2015), (434, 1885), (455, 1798), (754, 1085), (806, 1015), (899, 910)]