21529440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14951}}^1$

素因数の和:14972

約数の個数: 72

約数和(自身を含む): 73474128

約数和(自身を除く): 51944688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14951, 29902, 44853, 59804, 74755, 89706, 119608, 134559, 149510, 179412, 224265, 239216, 269118, 299020, 358824, 448530, 478432, 538236, 598040, 672795, 717648, 897060, 1076472, 1196080, 1345590, 1435296, 1794120, 2152944, 2392160, 2691180, 3588240, 4305888, 5382360, 7176480, 10764720, 21529440]

約数ペア:

[(1, 21529440), (2, 10764720), (3, 7176480), (4, 5382360), (5, 4305888), (6, 3588240), (8, 2691180), (9, 2392160), (10, 2152944), (12, 1794120), (15, 1435296), (16, 1345590), (18, 1196080), (20, 1076472), (24, 897060), (30, 717648), (32, 672795), (36, 598040), (40, 538236), (45, 478432), (48, 448530), (60, 358824), (72, 299020), (80, 269118), (90, 239216), (96, 224265), (120, 179412), (144, 149510), (160, 134559), (180, 119608), (240, 89706), (288, 74755), (360, 59804), (480, 44853), (720, 29902), (1440, 14951)]