398500784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73039}}^1$

素因数の和:73089

約数の個数: 40

約数和(自身を含む): 869468160

約数和(自身を除く): 470967376

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 5456, 73039, 146078, 292156, 584312, 803429, 1168624, 1606858, 2264209, 3213716, 4528418, 6427432, 9056836, 12854864, 18113672, 24906299, 36227344, 49812598, 99625196, 199250392, 398500784]

約数ペア:

[(1, 398500784), (2, 199250392), (4, 99625196), (8, 49812598), (11, 36227344), (16, 24906299), (22, 18113672), (31, 12854864), (44, 9056836), (62, 6427432), (88, 4528418), (124, 3213716), (176, 2264209), (248, 1606858), (341, 1168624), (496, 803429), (682, 584312), (1364, 292156), (2728, 146078), (5456, 73039)]