31238240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17749}}^1$

素因数の和:17775

約数の個数: 48

約数和(自身を含む): 80514000

約数和(自身を除く): 49275760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 17749, 35498, 70996, 88745, 141992, 177490, 195239, 283984, 354980, 390478, 567968, 709960, 780956, 976195, 1419920, 1561912, 1952390, 2839840, 3123824, 3904780, 6247648, 7809560, 15619120, 31238240]

約数ペア:

[(1, 31238240), (2, 15619120), (4, 7809560), (5, 6247648), (8, 3904780), (10, 3123824), (11, 2839840), (16, 1952390), (20, 1561912), (22, 1419920), (32, 976195), (40, 780956), (44, 709960), (55, 567968), (80, 390478), (88, 354980), (110, 283984), (160, 195239), (176, 177490), (220, 141992), (352, 88745), (440, 70996), (880, 35498), (1760, 17749)]