28476540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{563}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 86840208

約数和(自身を除く): 58363668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 563, 843, 1124, 1126, 1405, 1686, 1689, 2252, 2529, 2810, 2815, 3372, 3378, 4215, 5058, 5067, 5620, 5630, 6756, 8430, 8445, 10116, 10134, 11260, 12645, 16860, 16890, 20268, 25290, 25335, 33780, 50580, 50670, 101340, 158203, 316406, 474609, 632812, 791015, 949218, 1423827, 1582030, 1898436, 2373045, 2847654, 3164060, 4746090, 5695308, 7119135, 9492180, 14238270, 28476540]

約数ペア:

[(1, 28476540), (2, 14238270), (3, 9492180), (4, 7119135), (5, 5695308), (6, 4746090), (9, 3164060), (10, 2847654), (12, 2373045), (15, 1898436), (18, 1582030), (20, 1423827), (30, 949218), (36, 791015), (45, 632812), (60, 474609), (90, 316406), (180, 158203), (281, 101340), (562, 50670), (563, 50580), (843, 33780), (1124, 25335), (1126, 25290), (1405, 20268), (1686, 16890), (1689, 16860), (2252, 12645), (2529, 11260), (2810, 10134), (2815, 10116), (3372, 8445), (3378, 8430), (4215, 6756), (5058, 5630), (5067, 5620)]