287900000

素因数分解:

$2^5\times 5^5\times {\mathrm{2879}}^1$

素因数の和:2914

約数の個数: 72

約数和(自身を含む): 708704640

約数和(自身を除く): 420804640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 2879, 3125, 4000, 5000, 5758, 6250, 10000, 11516, 12500, 14395, 20000, 23032, 25000, 28790, 46064, 50000, 57580, 71975, 92128, 100000, 115160, 143950, 230320, 287900, 359875, 460640, 575800, 719750, 1151600, 1439500, 1799375, 2303200, 2879000, 3598750, 5758000, 7197500, 8996875, 11516000, 14395000, 17993750, 28790000, 35987500, 57580000, 71975000, 143950000, 287900000]

約数ペア:

[(1, 287900000), (2, 143950000), (4, 71975000), (5, 57580000), (8, 35987500), (10, 28790000), (16, 17993750), (20, 14395000), (25, 11516000), (32, 8996875), (40, 7197500), (50, 5758000), (80, 3598750), (100, 2879000), (125, 2303200), (160, 1799375), (200, 1439500), (250, 1151600), (400, 719750), (500, 575800), (625, 460640), (800, 359875), (1000, 287900), (1250, 230320), (2000, 143950), (2500, 115160), (2879, 100000), (3125, 92128), (4000, 71975), (5000, 57580), (5758, 50000), (6250, 46064), (10000, 28790), (11516, 25000), (12500, 23032), (14395, 20000)]