20081160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{461}}^1$

素因数の和:500

約数の個数: 144

約数和(自身を含む): 71891820

約数和(自身を除く): 51810660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 461, 484, 495, 605, 660, 726, 792, 922, 968, 990, 1089, 1210, 1320, 1383, 1452, 1815, 1844, 1980, 2178, 2305, 2420, 2766, 2904, 3630, 3688, 3960, 4149, 4356, 4610, 4840, 5071, 5445, 5532, 6915, 7260, 8298, 8712, 9220, 10142, 10890, 11064, 13830, 14520, 15213, 16596, 18440, 20284, 20745, 21780, 25355, 27660, 30426, 33192, 40568, 41490, 43560, 45639, 50710, 55320, 55781, 60852, 76065, 82980, 91278, 101420, 111562, 121704, 152130, 165960, 167343, 182556, 202840, 223124, 228195, 278905, 304260, 334686, 365112, 446248, 456390, 502029, 557810, 608520, 669372, 836715, 912780, 1004058, 1115620, 1338744, 1673430, 1825560, 2008116, 2231240, 2510145, 3346860, 4016232, 5020290, 6693720, 10040580, 20081160]

約数ペア:

[(1, 20081160), (2, 10040580), (3, 6693720), (4, 5020290), (5, 4016232), (6, 3346860), (8, 2510145), (9, 2231240), (10, 2008116), (11, 1825560), (12, 1673430), (15, 1338744), (18, 1115620), (20, 1004058), (22, 912780), (24, 836715), (30, 669372), (33, 608520), (36, 557810), (40, 502029), (44, 456390), (45, 446248), (55, 365112), (60, 334686), (66, 304260), (72, 278905), (88, 228195), (90, 223124), (99, 202840), (110, 182556), (120, 167343), (121, 165960), (132, 152130), (165, 121704), (180, 111562), (198, 101420), (220, 91278), (242, 82980), (264, 76065), (330, 60852), (360, 55781), (363, 55320), (396, 50710), (440, 45639), (461, 43560), (484, 41490), (495, 40568), (605, 33192), (660, 30426), (726, 27660), (792, 25355), (922, 21780), (968, 20745), (990, 20284), (1089, 18440), (1210, 16596), (1320, 15213), (1383, 14520), (1452, 13830), (1815, 11064), (1844, 10890), (1980, 10142), (2178, 9220), (2305, 8712), (2420, 8298), (2766, 7260), (2904, 6915), (3630, 5532), (3688, 5445), (3960, 5071), (4149, 4840), (4356, 4610)]