442000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:53

約数の個数: 80

約数和(自身を含む): 1218672

約数和(自身を除く): 776672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 125, 130, 136, 170, 200, 208, 221, 250, 260, 272, 325, 340, 400, 425, 442, 500, 520, 650, 680, 850, 884, 1000, 1040, 1105, 1300, 1360, 1625, 1700, 1768, 2000, 2125, 2210, 2600, 3250, 3400, 3536, 4250, 4420, 5200, 5525, 6500, 6800, 8500, 8840, 11050, 13000, 17000, 17680, 22100, 26000, 27625, 34000, 44200, 55250, 88400, 110500, 221000, 442000]

約数ペア:

[(1, 442000), (2, 221000), (4, 110500), (5, 88400), (8, 55250), (10, 44200), (13, 34000), (16, 27625), (17, 26000), (20, 22100), (25, 17680), (26, 17000), (34, 13000), (40, 11050), (50, 8840), (52, 8500), (65, 6800), (68, 6500), (80, 5525), (85, 5200), (100, 4420), (104, 4250), (125, 3536), (130, 3400), (136, 3250), (170, 2600), (200, 2210), (208, 2125), (221, 2000), (250, 1768), (260, 1700), (272, 1625), (325, 1360), (340, 1300), (400, 1105), (425, 1040), (442, 1000), (500, 884), (520, 850), (650, 680)]