20724120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:670

約数の個数: 128

約数和(自身を含む): 71424000

約数和(自身を除く): 50699880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 619, 620, 744, 837, 930, 1080, 1116, 1238, 1240, 1395, 1674, 1857, 1860, 2232, 2476, 2790, 3095, 3348, 3714, 3720, 4185, 4952, 5571, 5580, 6190, 6696, 7428, 8370, 9285, 11142, 11160, 12380, 14856, 16713, 16740, 18570, 19189, 22284, 24760, 27855, 33426, 33480, 37140, 38378, 44568, 55710, 57567, 66852, 74280, 76756, 83565, 95945, 111420, 115134, 133704, 153512, 167130, 172701, 191890, 222840, 230268, 287835, 334260, 345402, 383780, 460536, 518103, 575670, 668520, 690804, 767560, 863505, 1036206, 1151340, 1381608, 1727010, 2072412, 2302680, 2590515, 3454020, 4144824, 5181030, 6908040, 10362060, 20724120]

約数ペア:

[(1, 20724120), (2, 10362060), (3, 6908040), (4, 5181030), (5, 4144824), (6, 3454020), (8, 2590515), (9, 2302680), (10, 2072412), (12, 1727010), (15, 1381608), (18, 1151340), (20, 1036206), (24, 863505), (27, 767560), (30, 690804), (31, 668520), (36, 575670), (40, 518103), (45, 460536), (54, 383780), (60, 345402), (62, 334260), (72, 287835), (90, 230268), (93, 222840), (108, 191890), (120, 172701), (124, 167130), (135, 153512), (155, 133704), (180, 115134), (186, 111420), (216, 95945), (248, 83565), (270, 76756), (279, 74280), (310, 66852), (360, 57567), (372, 55710), (465, 44568), (540, 38378), (558, 37140), (619, 33480), (620, 33426), (744, 27855), (837, 24760), (930, 22284), (1080, 19189), (1116, 18570), (1238, 16740), (1240, 16713), (1395, 14856), (1674, 12380), (1857, 11160), (1860, 11142), (2232, 9285), (2476, 8370), (2790, 7428), (3095, 6696), (3348, 6190), (3714, 5580), (3720, 5571), (4185, 4952)]