18956280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22567}}^1$

素因数の和:22588

約数の個数: 64

約数和(自身を含む): 64995840

約数和(自身を除く): 46039560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22567, 45134, 67701, 90268, 112835, 135402, 157969, 180536, 225670, 270804, 315938, 338505, 451340, 473907, 541608, 631876, 677010, 789845, 902680, 947814, 1263752, 1354020, 1579690, 1895628, 2369535, 2708040, 3159380, 3791256, 4739070, 6318760, 9478140, 18956280]

約数ペア:

[(1, 18956280), (2, 9478140), (3, 6318760), (4, 4739070), (5, 3791256), (6, 3159380), (7, 2708040), (8, 2369535), (10, 1895628), (12, 1579690), (14, 1354020), (15, 1263752), (20, 947814), (21, 902680), (24, 789845), (28, 677010), (30, 631876), (35, 541608), (40, 473907), (42, 451340), (56, 338505), (60, 315938), (70, 270804), (84, 225670), (105, 180536), (120, 157969), (140, 135402), (168, 112835), (210, 90268), (280, 67701), (420, 45134), (840, 22567)]