78898120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6553}}^1$

素因数の和:6614

約数の個数: 64

約数和(自身を含む): 207630720

約数和(自身を除く): 128732600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 6553, 12040, 13106, 26212, 32765, 45871, 52424, 65530, 91742, 131060, 183484, 229355, 262120, 281779, 366968, 458710, 563558, 917420, 1127116, 1408895, 1834840, 1972453, 2254232, 2817790, 3944906, 5635580, 7889812, 9862265, 11271160, 15779624, 19724530, 39449060, 78898120]

約数ペア:

[(1, 78898120), (2, 39449060), (4, 19724530), (5, 15779624), (7, 11271160), (8, 9862265), (10, 7889812), (14, 5635580), (20, 3944906), (28, 2817790), (35, 2254232), (40, 1972453), (43, 1834840), (56, 1408895), (70, 1127116), (86, 917420), (140, 563558), (172, 458710), (215, 366968), (280, 281779), (301, 262120), (344, 229355), (430, 183484), (602, 131060), (860, 91742), (1204, 65530), (1505, 52424), (1720, 45871), (2408, 32765), (3010, 26212), (6020, 13106), (6553, 12040)]