18218460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23357}}^1$

素因数の和:23382

約数の個数: 48

約数和(自身を含む): 54938016

約数和(自身を除く): 36719556

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, 23357, 46714, 70071, 93428, 116785, 140142, 233570, 280284, 303641, 350355, 467140, 607282, 700710, 910923, 1214564, 1401420, 1518205, 1821846, 3036410, 3643692, 4554615, 6072820, 9109230, 18218460]

約数ペア:

[(1, 18218460), (2, 9109230), (3, 6072820), (4, 4554615), (5, 3643692), (6, 3036410), (10, 1821846), (12, 1518205), (13, 1401420), (15, 1214564), (20, 910923), (26, 700710), (30, 607282), (39, 467140), (52, 350355), (60, 303641), (65, 280284), (78, 233570), (130, 140142), (156, 116785), (195, 93428), (260, 70071), (390, 46714), (780, 23357)]