20304720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28201}}^1$

素因数の和:28220

約数の個数: 60

約数和(自身を含む): 68192436

約数和(自身を除く): 47887716

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28201, 56402, 84603, 112804, 141005, 169206, 225608, 253809, 282010, 338412, 423015, 451216, 507618, 564020, 676824, 846030, 1015236, 1128040, 1269045, 1353648, 1692060, 2030472, 2256080, 2538090, 3384120, 4060944, 5076180, 6768240, 10152360, 20304720]

約数ペア:

[(1, 20304720), (2, 10152360), (3, 6768240), (4, 5076180), (5, 4060944), (6, 3384120), (8, 2538090), (9, 2256080), (10, 2030472), (12, 1692060), (15, 1353648), (16, 1269045), (18, 1128040), (20, 1015236), (24, 846030), (30, 676824), (36, 564020), (40, 507618), (45, 451216), (48, 423015), (60, 338412), (72, 282010), (80, 253809), (90, 225608), (120, 169206), (144, 141005), (180, 112804), (240, 84603), (360, 56402), (720, 28201)]