1247998440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{799999}}^1$

素因数の和:800026

約数の個数: 64

約数和(自身を含む): 4032000000

約数和(自身を除く): 2784001560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 799999, 1599998, 2399997, 3199996, 3999995, 4799994, 6399992, 7999990, 9599988, 10399987, 11999985, 15999980, 19199976, 20799974, 23999970, 31199961, 31999960, 41599948, 47999940, 51999935, 62399922, 83199896, 95999880, 103999870, 124799844, 155999805, 207999740, 249599688, 311999610, 415999480, 623999220, 1247998440]

約数ペア:

[(1, 1247998440), (2, 623999220), (3, 415999480), (4, 311999610), (5, 249599688), (6, 207999740), (8, 155999805), (10, 124799844), (12, 103999870), (13, 95999880), (15, 83199896), (20, 62399922), (24, 51999935), (26, 47999940), (30, 41599948), (39, 31999960), (40, 31199961), (52, 23999970), (60, 20799974), (65, 19199976), (78, 15999980), (104, 11999985), (120, 10399987), (130, 9599988), (156, 7999990), (195, 6399992), (260, 4799994), (312, 3999995), (390, 3199996), (520, 2399997), (780, 1599998), (1560, 799999)]