18459420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43951}}^1$

素因数の和:43970

約数の個数: 48

約数和(自身を含む): 59071488

約数和(自身を除く): 40612068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43951, 87902, 131853, 175804, 219755, 263706, 307657, 439510, 527412, 615314, 659265, 879020, 922971, 1230628, 1318530, 1538285, 1845942, 2637060, 3076570, 3691884, 4614855, 6153140, 9229710, 18459420]

約数ペア:

[(1, 18459420), (2, 9229710), (3, 6153140), (4, 4614855), (5, 3691884), (6, 3076570), (7, 2637060), (10, 1845942), (12, 1538285), (14, 1318530), (15, 1230628), (20, 922971), (21, 879020), (28, 659265), (30, 615314), (35, 527412), (42, 439510), (60, 307657), (70, 263706), (84, 219755), (105, 175804), (140, 131853), (210, 87902), (420, 43951)]