18998464

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 56

約数和(自身を含む): 39611808

約数和(自身を除く): 20613344

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 71, 74, 113, 142, 148, 226, 284, 296, 452, 568, 592, 904, 1136, 1184, 1808, 2272, 2368, 2627, 3616, 4181, 4544, 5254, 7232, 8023, 8362, 10508, 16046, 16724, 21016, 32092, 33448, 42032, 64184, 66896, 84064, 128368, 133792, 168128, 256736, 267584, 296851, 513472, 593702, 1187404, 2374808, 4749616, 9499232, 18998464]

約数ペア:

[(1, 18998464), (2, 9499232), (4, 4749616), (8, 2374808), (16, 1187404), (32, 593702), (37, 513472), (64, 296851), (71, 267584), (74, 256736), (113, 168128), (142, 133792), (148, 128368), (226, 84064), (284, 66896), (296, 64184), (452, 42032), (568, 33448), (592, 32092), (904, 21016), (1136, 16724), (1184, 16046), (1808, 10508), (2272, 8362), (2368, 8023), (2627, 7232), (3616, 5254), (4181, 4544)]