2100068920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1\times {\mathrm{953}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 4790988000

約数和(自身を除く): 2690919080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 619, 712, 890, 953, 1238, 1780, 1906, 2476, 3095, 3560, 3812, 4765, 4952, 6190, 7624, 9530, 12380, 19060, 24760, 38120, 55091, 84817, 110182, 169634, 220364, 275455, 339268, 424085, 440728, 550910, 589907, 678536, 848170, 1101820, 1179814, 1696340, 2203640, 2359628, 2949535, 3392680, 4719256, 5899070, 11798140, 23596280, 52501723, 105003446, 210006892, 262508615, 420013784, 525017230, 1050034460, 2100068920]

約数ペア:

[(1, 2100068920), (2, 1050034460), (4, 525017230), (5, 420013784), (8, 262508615), (10, 210006892), (20, 105003446), (40, 52501723), (89, 23596280), (178, 11798140), (356, 5899070), (445, 4719256), (619, 3392680), (712, 2949535), (890, 2359628), (953, 2203640), (1238, 1696340), (1780, 1179814), (1906, 1101820), (2476, 848170), (3095, 678536), (3560, 589907), (3812, 550910), (4765, 440728), (4952, 424085), (6190, 339268), (7624, 275455), (9530, 220364), (12380, 169634), (19060, 110182), (24760, 84817), (38120, 55091)]