256470812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 501446400

約数和(自身を除く): 244975588

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 389, 403, 409, 778, 806, 818, 1556, 1612, 1636, 5057, 5317, 10114, 10634, 12059, 12679, 20228, 21268, 24118, 25358, 48236, 50716, 156767, 159101, 164827, 313534, 318202, 329654, 627068, 636404, 659308, 2068313, 4136626, 4932131, 8273252, 9864262, 19728524, 64117703, 128235406, 256470812]

約数ペア:

[(1, 256470812), (2, 128235406), (4, 64117703), (13, 19728524), (26, 9864262), (31, 8273252), (52, 4932131), (62, 4136626), (124, 2068313), (389, 659308), (403, 636404), (409, 627068), (778, 329654), (806, 318202), (818, 313534), (1556, 164827), (1612, 159101), (1636, 156767), (5057, 50716), (5317, 48236), (10114, 25358), (10634, 24118), (12059, 21268), (12679, 20228)]