12942831940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1\times {\mathrm{6659}}^1$

素因数の和:7444

約数の個数: 48

約数和(自身を含む): 27401371200

約数和(自身を除く): 14458539260

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 619, 628, 785, 1238, 1570, 2476, 3095, 3140, 6190, 6659, 12380, 13318, 26636, 33295, 66590, 97183, 133180, 194366, 388732, 485915, 971830, 1045463, 1943660, 2090926, 4121921, 4181852, 5227315, 8243842, 10454630, 16487684, 20609605, 20909260, 41219210, 82438420, 647141597, 1294283194, 2588566388, 3235707985, 6471415970, 12942831940]

約数ペア:

[(1, 12942831940), (2, 6471415970), (4, 3235707985), (5, 2588566388), (10, 1294283194), (20, 647141597), (157, 82438420), (314, 41219210), (619, 20909260), (628, 20609605), (785, 16487684), (1238, 10454630), (1570, 8243842), (2476, 5227315), (3095, 4181852), (3140, 4121921), (6190, 2090926), (6659, 1943660), (12380, 1045463), (13318, 971830), (26636, 485915), (33295, 388732), (66590, 194366), (97183, 133180)]