129218180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{70999}}^1$

素因数の和:71028

約数の個数: 48

約数和(自身を含む): 333984000

約数和(自身を除く): 204765820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 70999, 141998, 283996, 354995, 496993, 709990, 922987, 993986, 1419980, 1845974, 1987972, 2484965, 3691948, 4614935, 4969930, 6460909, 9229870, 9939860, 12921818, 18459740, 25843636, 32304545, 64609090, 129218180]

約数ペア:

[(1, 129218180), (2, 64609090), (4, 32304545), (5, 25843636), (7, 18459740), (10, 12921818), (13, 9939860), (14, 9229870), (20, 6460909), (26, 4969930), (28, 4614935), (35, 3691948), (52, 2484965), (65, 1987972), (70, 1845974), (91, 1419980), (130, 993986), (140, 922987), (182, 709990), (260, 496993), (364, 354995), (455, 283996), (910, 141998), (1820, 70999)]