19748768

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1637}}^1$

素因数の和:1689

約数の個数: 48

約数和(自身を含む): 43341480

約数和(自身を除く): 23592712

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 208, 232, 377, 416, 464, 754, 928, 1508, 1637, 3016, 3274, 6032, 6548, 12064, 13096, 21281, 26192, 42562, 47473, 52384, 85124, 94946, 170248, 189892, 340496, 379784, 617149, 680992, 759568, 1234298, 1519136, 2468596, 4937192, 9874384, 19748768]

約数ペア:

[(1, 19748768), (2, 9874384), (4, 4937192), (8, 2468596), (13, 1519136), (16, 1234298), (26, 759568), (29, 680992), (32, 617149), (52, 379784), (58, 340496), (104, 189892), (116, 170248), (208, 94946), (232, 85124), (377, 52384), (416, 47473), (464, 42562), (754, 26192), (928, 21281), (1508, 13096), (1637, 12064), (3016, 6548), (3274, 6032)]