86878220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:891

約数の個数: 96

約数和(自身を含む): 220401216

約数和(自身を除く): 133522996

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 37, 44, 52, 55, 65, 74, 110, 130, 143, 148, 185, 220, 260, 286, 370, 407, 481, 572, 715, 740, 814, 821, 962, 1430, 1628, 1642, 1924, 2035, 2405, 2860, 3284, 4070, 4105, 4810, 5291, 8140, 8210, 9031, 9620, 10582, 10673, 16420, 18062, 21164, 21346, 26455, 30377, 36124, 42692, 45155, 52910, 53365, 60754, 90310, 105820, 106730, 117403, 121508, 151885, 180620, 213460, 234806, 303770, 334147, 394901, 469612, 587015, 607540, 668294, 789802, 1174030, 1336588, 1579604, 1670735, 1974505, 2348060, 3341470, 3949010, 4343911, 6682940, 7898020, 8687822, 17375644, 21719555, 43439110, 86878220]

約数ペア:

[(1, 86878220), (2, 43439110), (4, 21719555), (5, 17375644), (10, 8687822), (11, 7898020), (13, 6682940), (20, 4343911), (22, 3949010), (26, 3341470), (37, 2348060), (44, 1974505), (52, 1670735), (55, 1579604), (65, 1336588), (74, 1174030), (110, 789802), (130, 668294), (143, 607540), (148, 587015), (185, 469612), (220, 394901), (260, 334147), (286, 303770), (370, 234806), (407, 213460), (481, 180620), (572, 151885), (715, 121508), (740, 117403), (814, 106730), (821, 105820), (962, 90310), (1430, 60754), (1628, 53365), (1642, 52910), (1924, 45155), (2035, 42692), (2405, 36124), (2860, 30377), (3284, 26455), (4070, 21346), (4105, 21164), (4810, 18062), (5291, 16420), (8140, 10673), (8210, 10582), (9031, 9620)]