398631844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{10487}}^1$

素因数の和:10564

約数の個数: 48

約数和(自身を含む): 814036608

約数和(自身を除く): 415404764

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 559, 731, 884, 1118, 1462, 2236, 2924, 9503, 10487, 19006, 20974, 38012, 41948, 136331, 178279, 272662, 356558, 450941, 545324, 713116, 901882, 1803764, 2317627, 4635254, 5862233, 7665997, 9270508, 11724466, 15331994, 23448932, 30663988, 99657961, 199315922, 398631844]

約数ペア:

[(1, 398631844), (2, 199315922), (4, 99657961), (13, 30663988), (17, 23448932), (26, 15331994), (34, 11724466), (43, 9270508), (52, 7665997), (68, 5862233), (86, 4635254), (172, 2317627), (221, 1803764), (442, 901882), (559, 713116), (731, 545324), (884, 450941), (1118, 356558), (1462, 272662), (2236, 178279), (2924, 136331), (9503, 41948), (10487, 38012), (19006, 20974)]