279344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:117

約数の個数: 40

約数和(自身を含む): 624960

約数和(自身を除く): 345616

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 79, 104, 136, 158, 208, 221, 272, 316, 442, 632, 884, 1027, 1264, 1343, 1768, 2054, 2686, 3536, 4108, 5372, 8216, 10744, 16432, 17459, 21488, 34918, 69836, 139672, 279344]

約数ペア:

[(1, 279344), (2, 139672), (4, 69836), (8, 34918), (13, 21488), (16, 17459), (17, 16432), (26, 10744), (34, 8216), (52, 5372), (68, 4108), (79, 3536), (104, 2686), (136, 2054), (158, 1768), (208, 1343), (221, 1264), (272, 1027), (316, 884), (442, 632)]