15855420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{5393}}^1$

素因数の和:5419

約数の個数: 72

約数和(自身を含む): 51652944

約数和(自身を除く): 35797524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 5393, 10786, 16179, 21572, 26965, 32358, 37751, 53930, 64716, 75502, 80895, 107860, 113253, 151004, 161790, 188755, 226506, 264257, 323580, 377510, 453012, 528514, 566265, 755020, 792771, 1057028, 1132530, 1321285, 1585542, 2265060, 2642570, 3171084, 3963855, 5285140, 7927710, 15855420]

約数ペア:

[(1, 15855420), (2, 7927710), (3, 5285140), (4, 3963855), (5, 3171084), (6, 2642570), (7, 2265060), (10, 1585542), (12, 1321285), (14, 1132530), (15, 1057028), (20, 792771), (21, 755020), (28, 566265), (30, 528514), (35, 453012), (42, 377510), (49, 323580), (60, 264257), (70, 226506), (84, 188755), (98, 161790), (105, 151004), (140, 113253), (147, 107860), (196, 80895), (210, 75502), (245, 64716), (294, 53930), (420, 37751), (490, 32358), (588, 26965), (735, 21572), (980, 16179), (1470, 10786), (2940, 5393)]