78728910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6961}}^1$

素因数の和:7013

約数の個数: 64

約数和(自身を含む): 210530880

約数和(自身を除く): 131801970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 39, 58, 65, 78, 87, 130, 145, 174, 195, 290, 377, 390, 435, 754, 870, 1131, 1885, 2262, 3770, 5655, 6961, 11310, 13922, 20883, 34805, 41766, 69610, 90493, 104415, 180986, 201869, 208830, 271479, 403738, 452465, 542958, 605607, 904930, 1009345, 1211214, 1357395, 2018690, 2624297, 2714790, 3028035, 5248594, 6056070, 7872891, 13121485, 15745782, 26242970, 39364455, 78728910]

約数ペア:

[(1, 78728910), (2, 39364455), (3, 26242970), (5, 15745782), (6, 13121485), (10, 7872891), (13, 6056070), (15, 5248594), (26, 3028035), (29, 2714790), (30, 2624297), (39, 2018690), (58, 1357395), (65, 1211214), (78, 1009345), (87, 904930), (130, 605607), (145, 542958), (174, 452465), (195, 403738), (290, 271479), (377, 208830), (390, 201869), (435, 180986), (754, 104415), (870, 90493), (1131, 69610), (1885, 41766), (2262, 34805), (3770, 20883), (5655, 13922), (6961, 11310)]