1389128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 48

約数和(自身を含む): 3040380

約数和(自身を除く): 1651252

約数列:

[1, 2, 4, 8, 13, 19, 26, 37, 38, 52, 74, 76, 104, 148, 152, 247, 296, 361, 481, 494, 703, 722, 962, 988, 1406, 1444, 1924, 1976, 2812, 2888, 3848, 4693, 5624, 9139, 9386, 13357, 18278, 18772, 26714, 36556, 37544, 53428, 73112, 106856, 173641, 347282, 694564, 1389128]

約数ペア:

[(1, 1389128), (2, 694564), (4, 347282), (8, 173641), (13, 106856), (19, 73112), (26, 53428), (37, 37544), (38, 36556), (52, 26714), (74, 18772), (76, 18278), (104, 13357), (148, 9386), (152, 9139), (247, 5624), (296, 4693), (361, 3848), (481, 2888), (494, 2812), (703, 1976), (722, 1924), (962, 1444), (988, 1406)]