20768760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1909

約数の個数: 96

約数和(自身を含む): 69713280

約数和(自身を除く): 48944520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1861, 2232, 2790, 3720, 3722, 5580, 5583, 7444, 9305, 11160, 11166, 14888, 16749, 18610, 22332, 27915, 33498, 37220, 44664, 55830, 57691, 66996, 74440, 83745, 111660, 115382, 133992, 167490, 173073, 223320, 230764, 288455, 334980, 346146, 461528, 519219, 576910, 669960, 692292, 865365, 1038438, 1153820, 1384584, 1730730, 2076876, 2307640, 2596095, 3461460, 4153752, 5192190, 6922920, 10384380, 20768760]

約数ペア:

[(1, 20768760), (2, 10384380), (3, 6922920), (4, 5192190), (5, 4153752), (6, 3461460), (8, 2596095), (9, 2307640), (10, 2076876), (12, 1730730), (15, 1384584), (18, 1153820), (20, 1038438), (24, 865365), (30, 692292), (31, 669960), (36, 576910), (40, 519219), (45, 461528), (60, 346146), (62, 334980), (72, 288455), (90, 230764), (93, 223320), (120, 173073), (124, 167490), (155, 133992), (180, 115382), (186, 111660), (248, 83745), (279, 74440), (310, 66996), (360, 57691), (372, 55830), (465, 44664), (558, 37220), (620, 33498), (744, 27915), (930, 22332), (1116, 18610), (1240, 16749), (1395, 14888), (1860, 11166), (1861, 11160), (2232, 9305), (2790, 7444), (3720, 5583), (3722, 5580)]