18690464

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 40007520

約数和(自身を除く): 21317056

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 179, 208, 251, 358, 416, 502, 716, 1004, 1432, 2008, 2327, 2864, 3263, 4016, 4654, 5728, 6526, 8032, 9308, 13052, 18616, 26104, 37232, 44929, 52208, 74464, 89858, 104416, 179716, 359432, 584077, 718864, 1168154, 1437728, 2336308, 4672616, 9345232, 18690464]

約数ペア:

[(1, 18690464), (2, 9345232), (4, 4672616), (8, 2336308), (13, 1437728), (16, 1168154), (26, 718864), (32, 584077), (52, 359432), (104, 179716), (179, 104416), (208, 89858), (251, 74464), (358, 52208), (416, 44929), (502, 37232), (716, 26104), (1004, 18616), (1432, 13052), (2008, 9308), (2327, 8032), (2864, 6526), (3263, 5728), (4016, 4654)]