81840564

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:918

約数の個数: 96

約数和(自身を含む): 232001280

約数和(自身を除く): 150160716

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 71, 78, 108, 117, 142, 156, 213, 234, 284, 351, 426, 468, 639, 702, 821, 852, 923, 1278, 1404, 1642, 1846, 1917, 2463, 2556, 2769, 3284, 3692, 3834, 4926, 5538, 7389, 7668, 8307, 9852, 10673, 11076, 14778, 16614, 21346, 22167, 24921, 29556, 32019, 33228, 42692, 44334, 49842, 58291, 64038, 88668, 96057, 99684, 116582, 128076, 174873, 192114, 233164, 288171, 349746, 384228, 524619, 576342, 699492, 757783, 1049238, 1152684, 1515566, 1573857, 2098476, 2273349, 3031132, 3147714, 4546698, 6295428, 6820047, 9093396, 13640094, 20460141, 27280188, 40920282, 81840564]

約数ペア:

[(1, 81840564), (2, 40920282), (3, 27280188), (4, 20460141), (6, 13640094), (9, 9093396), (12, 6820047), (13, 6295428), (18, 4546698), (26, 3147714), (27, 3031132), (36, 2273349), (39, 2098476), (52, 1573857), (54, 1515566), (71, 1152684), (78, 1049238), (108, 757783), (117, 699492), (142, 576342), (156, 524619), (213, 384228), (234, 349746), (284, 288171), (351, 233164), (426, 192114), (468, 174873), (639, 128076), (702, 116582), (821, 99684), (852, 96057), (923, 88668), (1278, 64038), (1404, 58291), (1642, 49842), (1846, 44334), (1917, 42692), (2463, 33228), (2556, 32019), (2769, 29556), (3284, 24921), (3692, 22167), (3834, 21346), (4926, 16614), (5538, 14778), (7389, 11076), (7668, 10673), (8307, 9852)]