28748460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36857}}^1$

素因数の和:36882

約数の個数: 48

約数和(自身を含む): 86690016

約数和(自身を除く): 57941556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36857, 73714, 110571, 147428, 184285, 221142, 368570, 442284, 479141, 552855, 737140, 958282, 1105710, 1437423, 1916564, 2211420, 2395705, 2874846, 4791410, 5749692, 7187115, 9582820, 14374230, 28748460]

約数ペア:

[(1, 28748460), (2, 14374230), (3, 9582820), (4, 7187115), (5, 5749692), (6, 4791410), (10, 2874846), (12, 2395705), (13, 2211420), (15, 1916564), (20, 1437423), (26, 1105710), (30, 958282), (39, 737140), (52, 552855), (60, 479141), (65, 442284), (78, 368570), (130, 221142), (156, 184285), (195, 147428), (260, 110571), (390, 73714), (780, 36857)]