201478040

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{9043}}^1$

素因数の和:9611

約数の個数: 32

約数和(自身を含む): 454189680

約数和(自身を除く): 252711640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 9043, 11140, 18086, 22280, 36172, 45215, 72344, 90430, 180860, 361720, 5036951, 10073902, 20147804, 25184755, 40295608, 50369510, 100739020, 201478040]

約数ペア:

[(1, 201478040), (2, 100739020), (4, 50369510), (5, 40295608), (8, 25184755), (10, 20147804), (20, 10073902), (40, 5036951), (557, 361720), (1114, 180860), (2228, 90430), (2785, 72344), (4456, 45215), (5570, 36172), (9043, 22280), (11140, 18086)]