640500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 96

約数和(自身を含む): 2166528

約数和(自身を除く): 1526028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 61, 70, 75, 84, 100, 105, 122, 125, 140, 150, 175, 183, 210, 244, 250, 300, 305, 350, 366, 375, 420, 427, 500, 525, 610, 700, 732, 750, 854, 875, 915, 1050, 1220, 1281, 1500, 1525, 1708, 1750, 1830, 2100, 2135, 2562, 2625, 3050, 3500, 3660, 4270, 4575, 5124, 5250, 6100, 6405, 7625, 8540, 9150, 10500, 10675, 12810, 15250, 18300, 21350, 22875, 25620, 30500, 32025, 42700, 45750, 53375, 64050, 91500, 106750, 128100, 160125, 213500, 320250, 640500]

約数ペア:

[(1, 640500), (2, 320250), (3, 213500), (4, 160125), (5, 128100), (6, 106750), (7, 91500), (10, 64050), (12, 53375), (14, 45750), (15, 42700), (20, 32025), (21, 30500), (25, 25620), (28, 22875), (30, 21350), (35, 18300), (42, 15250), (50, 12810), (60, 10675), (61, 10500), (70, 9150), (75, 8540), (84, 7625), (100, 6405), (105, 6100), (122, 5250), (125, 5124), (140, 4575), (150, 4270), (175, 3660), (183, 3500), (210, 3050), (244, 2625), (250, 2562), (300, 2135), (305, 2100), (350, 1830), (366, 1750), (375, 1708), (420, 1525), (427, 1500), (500, 1281), (525, 1220), (610, 1050), (700, 915), (732, 875), (750, 854)]