77811080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2381}}^1$

素因数の和:2454

約数の個数: 64

約数和(自身を含む): 188654400

約数和(自身を除く): 110843320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2381, 3268, 4085, 4762, 6536, 8170, 9524, 11905, 16340, 19048, 23810, 32680, 45239, 47620, 90478, 95240, 102383, 180956, 204766, 226195, 361912, 409532, 452390, 511915, 819064, 904780, 1023830, 1809560, 1945277, 2047660, 3890554, 4095320, 7781108, 9726385, 15562216, 19452770, 38905540, 77811080]

約数ペア:

[(1, 77811080), (2, 38905540), (4, 19452770), (5, 15562216), (8, 9726385), (10, 7781108), (19, 4095320), (20, 3890554), (38, 2047660), (40, 1945277), (43, 1809560), (76, 1023830), (86, 904780), (95, 819064), (152, 511915), (172, 452390), (190, 409532), (215, 361912), (344, 226195), (380, 204766), (430, 180956), (760, 102383), (817, 95240), (860, 90478), (1634, 47620), (1720, 45239), (2381, 32680), (3268, 23810), (4085, 19048), (4762, 16340), (6536, 11905), (8170, 9524)]