399361716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{27527}}^1$

素因数の和:27581

約数の個数: 72

約数和(自身を含む): 1122261504

約数和(自身を除く): 722899788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1612, 2418, 3627, 4836, 7254, 14508, 27527, 55054, 82581, 110108, 165162, 247743, 330324, 357851, 495486, 715702, 853337, 990972, 1073553, 1431404, 1706674, 2147106, 2560011, 3220659, 3413348, 4294212, 5120022, 6441318, 7680033, 10240044, 11093381, 12882636, 15360066, 22186762, 30720132, 33280143, 44373524, 66560286, 99840429, 133120572, 199680858, 399361716]

約数ペア:

[(1, 399361716), (2, 199680858), (3, 133120572), (4, 99840429), (6, 66560286), (9, 44373524), (12, 33280143), (13, 30720132), (18, 22186762), (26, 15360066), (31, 12882636), (36, 11093381), (39, 10240044), (52, 7680033), (62, 6441318), (78, 5120022), (93, 4294212), (117, 3413348), (124, 3220659), (156, 2560011), (186, 2147106), (234, 1706674), (279, 1431404), (372, 1073553), (403, 990972), (468, 853337), (558, 715702), (806, 495486), (1116, 357851), (1209, 330324), (1612, 247743), (2418, 165162), (3627, 110108), (4836, 82581), (7254, 55054), (14508, 27527)]