398559720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255487}}^1$

素因数の和:255514

約数の個数: 64

約数和(自身を含む): 1287659520

約数和(自身を除く): 889099800

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, 255487, 510974, 766461, 1021948, 1277435, 1532922, 2043896, 2554870, 3065844, 3321331, 3832305, 5109740, 6131688, 6642662, 7664610, 9963993, 10219480, 13285324, 15329220, 16606655, 19927986, 26570648, 30658440, 33213310, 39855972, 49819965, 66426620, 79711944, 99639930, 132853240, 199279860, 398559720]

約数ペア:

[(1, 398559720), (2, 199279860), (3, 132853240), (4, 99639930), (5, 79711944), (6, 66426620), (8, 49819965), (10, 39855972), (12, 33213310), (13, 30658440), (15, 26570648), (20, 19927986), (24, 16606655), (26, 15329220), (30, 13285324), (39, 10219480), (40, 9963993), (52, 7664610), (60, 6642662), (65, 6131688), (78, 5109740), (104, 3832305), (120, 3321331), (130, 3065844), (156, 2554870), (195, 2043896), (260, 1532922), (312, 1277435), (390, 1021948), (520, 766461), (780, 510974), (1560, 255487)]