428513330

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 904780800

約数和(自身を除く): 476267470

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 271, 343, 461, 490, 542, 686, 922, 1355, 1715, 1897, 2305, 2710, 3227, 3430, 3794, 4610, 6454, 9485, 13279, 16135, 18970, 22589, 26558, 32270, 45178, 66395, 92953, 112945, 124931, 132790, 158123, 185906, 225890, 249862, 316246, 464765, 624655, 790615, 874517, 929530, 1249310, 1581230, 1749034, 4372585, 6121619, 8745170, 12243238, 30608095, 42851333, 61216190, 85702666, 214256665, 428513330]

約数ペア:

[(1, 428513330), (2, 214256665), (5, 85702666), (7, 61216190), (10, 42851333), (14, 30608095), (35, 12243238), (49, 8745170), (70, 6121619), (98, 4372585), (245, 1749034), (271, 1581230), (343, 1249310), (461, 929530), (490, 874517), (542, 790615), (686, 624655), (922, 464765), (1355, 316246), (1715, 249862), (1897, 225890), (2305, 185906), (2710, 158123), (3227, 132790), (3430, 124931), (3794, 112945), (4610, 92953), (6454, 66395), (9485, 45178), (13279, 32270), (16135, 26558), (18970, 22589)]