678904996

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18523}}^1$

素因数の和:18569

約数の個数: 72

約数和(自身を含む): 1596472416

約数和(自身を除く): 917567420

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 748, 833, 1078, 1309, 1666, 2156, 2618, 3332, 5236, 9163, 18326, 18523, 36652, 37046, 74092, 129661, 203753, 259322, 314891, 407506, 518644, 629782, 815012, 907627, 1259564, 1426271, 1815254, 2204237, 2852542, 3463801, 3630508, 4408474, 5705084, 6927602, 8816948, 9983897, 13855204, 15429659, 19967794, 24246607, 30859318, 39935588, 48493214, 61718636, 96986428, 169726249, 339452498, 678904996]

約数ペア:

[(1, 678904996), (2, 339452498), (4, 169726249), (7, 96986428), (11, 61718636), (14, 48493214), (17, 39935588), (22, 30859318), (28, 24246607), (34, 19967794), (44, 15429659), (49, 13855204), (68, 9983897), (77, 8816948), (98, 6927602), (119, 5705084), (154, 4408474), (187, 3630508), (196, 3463801), (238, 2852542), (308, 2204237), (374, 1815254), (476, 1426271), (539, 1259564), (748, 907627), (833, 815012), (1078, 629782), (1309, 518644), (1666, 407506), (2156, 314891), (2618, 259322), (3332, 203753), (5236, 129661), (9163, 74092), (18326, 37046), (18523, 36652)]