20621520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9547}}^1$

素因数の和:9569

約数の個数: 80

約数和(自身を含む): 71037120

約数和(自身を除く): 50415600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9547, 19094, 28641, 38188, 47735, 57282, 76376, 85923, 95470, 114564, 143205, 152752, 171846, 190940, 229128, 257769, 286410, 343692, 381880, 429615, 458256, 515538, 572820, 687384, 763760, 859230, 1031076, 1145640, 1288845, 1374768, 1718460, 2062152, 2291280, 2577690, 3436920, 4124304, 5155380, 6873840, 10310760, 20621520]

約数ペア:

[(1, 20621520), (2, 10310760), (3, 6873840), (4, 5155380), (5, 4124304), (6, 3436920), (8, 2577690), (9, 2291280), (10, 2062152), (12, 1718460), (15, 1374768), (16, 1288845), (18, 1145640), (20, 1031076), (24, 859230), (27, 763760), (30, 687384), (36, 572820), (40, 515538), (45, 458256), (48, 429615), (54, 381880), (60, 343692), (72, 286410), (80, 257769), (90, 229128), (108, 190940), (120, 171846), (135, 152752), (144, 143205), (180, 114564), (216, 95470), (240, 85923), (270, 76376), (360, 57282), (432, 47735), (540, 38188), (720, 28641), (1080, 19094), (2160, 9547)]