28940100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13781}}^1$

素因数の和:13805

約数の個数: 72

約数和(自身を含む): 95702208

約数和(自身を除く): 66762108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 13781, 27562, 41343, 55124, 68905, 82686, 96467, 137810, 165372, 192934, 206715, 275620, 289401, 344525, 385868, 413430, 482335, 578802, 689050, 826860, 964670, 1033575, 1157604, 1378100, 1447005, 1929340, 2067150, 2411675, 2894010, 4134300, 4823350, 5788020, 7235025, 9646700, 14470050, 28940100]

約数ペア:

[(1, 28940100), (2, 14470050), (3, 9646700), (4, 7235025), (5, 5788020), (6, 4823350), (7, 4134300), (10, 2894010), (12, 2411675), (14, 2067150), (15, 1929340), (20, 1447005), (21, 1378100), (25, 1157604), (28, 1033575), (30, 964670), (35, 826860), (42, 689050), (50, 578802), (60, 482335), (70, 413430), (75, 385868), (84, 344525), (100, 289401), (105, 275620), (140, 206715), (150, 192934), (175, 165372), (210, 137810), (300, 96467), (350, 82686), (420, 68905), (525, 55124), (700, 41343), (1050, 27562), (2100, 13781)]