18954840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{827}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 38276520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 191, 382, 573, 764, 827, 955, 1146, 1528, 1654, 1910, 2292, 2481, 2865, 3308, 3820, 4135, 4584, 4962, 5730, 6616, 7640, 8270, 9924, 11460, 12405, 16540, 19848, 22920, 24810, 33080, 49620, 99240, 157957, 315914, 473871, 631828, 789785, 947742, 1263656, 1579570, 1895484, 2369355, 3159140, 3790968, 4738710, 6318280, 9477420, 18954840]

約数ペア:

[(1, 18954840), (2, 9477420), (3, 6318280), (4, 4738710), (5, 3790968), (6, 3159140), (8, 2369355), (10, 1895484), (12, 1579570), (15, 1263656), (20, 947742), (24, 789785), (30, 631828), (40, 473871), (60, 315914), (120, 157957), (191, 99240), (382, 49620), (573, 33080), (764, 24810), (827, 22920), (955, 19848), (1146, 16540), (1528, 12405), (1654, 11460), (1910, 9924), (2292, 8270), (2481, 7640), (2865, 6616), (3308, 5730), (3820, 4962), (4135, 4584)]