1990638

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 4769856

約数和(自身を除く): 2779218

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 181, 234, 282, 362, 423, 543, 611, 846, 1086, 1222, 1629, 1833, 2353, 3258, 3666, 4706, 5499, 7059, 8507, 10998, 14118, 17014, 21177, 25521, 42354, 51042, 76563, 110591, 153126, 221182, 331773, 663546, 995319, 1990638]

約数ペア:

[(1, 1990638), (2, 995319), (3, 663546), (6, 331773), (9, 221182), (13, 153126), (18, 110591), (26, 76563), (39, 51042), (47, 42354), (78, 25521), (94, 21177), (117, 17014), (141, 14118), (181, 10998), (234, 8507), (282, 7059), (362, 5499), (423, 4706), (543, 3666), (611, 3258), (846, 2353), (1086, 1833), (1222, 1629)]