312900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{149}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 1041600

約数和(自身を除く): 728700

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, 149, 150, 175, 210, 298, 300, 350, 420, 447, 525, 596, 700, 745, 894, 1043, 1050, 1490, 1788, 2086, 2100, 2235, 2980, 3129, 3725, 4172, 4470, 5215, 6258, 7450, 8940, 10430, 11175, 12516, 14900, 15645, 20860, 22350, 26075, 31290, 44700, 52150, 62580, 78225, 104300, 156450, 312900]

約数ペア:

[(1, 312900), (2, 156450), (3, 104300), (4, 78225), (5, 62580), (6, 52150), (7, 44700), (10, 31290), (12, 26075), (14, 22350), (15, 20860), (20, 15645), (21, 14900), (25, 12516), (28, 11175), (30, 10430), (35, 8940), (42, 7450), (50, 6258), (60, 5215), (70, 4470), (75, 4172), (84, 3725), (100, 3129), (105, 2980), (140, 2235), (149, 2100), (150, 2086), (175, 1788), (210, 1490), (298, 1050), (300, 1043), (350, 894), (420, 745), (447, 700), (525, 596)]