21055920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1487}}^1$

素因数の和:1562

約数の個数: 80

約数和(自身を含む): 66424320

約数和(自身を除く): 45368400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1487, 1770, 2360, 2832, 2974, 3540, 4461, 4720, 5948, 7080, 7435, 8922, 11896, 14160, 14870, 17844, 22305, 23792, 29740, 35688, 44610, 59480, 71376, 87733, 89220, 118960, 175466, 178440, 263199, 350932, 356880, 438665, 526398, 701864, 877330, 1052796, 1315995, 1403728, 1754660, 2105592, 2631990, 3509320, 4211184, 5263980, 7018640, 10527960, 21055920]

約数ペア:

[(1, 21055920), (2, 10527960), (3, 7018640), (4, 5263980), (5, 4211184), (6, 3509320), (8, 2631990), (10, 2105592), (12, 1754660), (15, 1403728), (16, 1315995), (20, 1052796), (24, 877330), (30, 701864), (40, 526398), (48, 438665), (59, 356880), (60, 350932), (80, 263199), (118, 178440), (120, 175466), (177, 118960), (236, 89220), (240, 87733), (295, 71376), (354, 59480), (472, 44610), (590, 35688), (708, 29740), (885, 23792), (944, 22305), (1180, 17844), (1416, 14870), (1487, 14160), (1770, 11896), (2360, 8922), (2832, 7435), (2974, 7080), (3540, 5948), (4461, 4720)]