31195320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19997}}^1$

素因数の和:20024

約数の個数: 64

約数和(自身を含む): 100789920

約数和(自身を除く): 69594600

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, 19997, 39994, 59991, 79988, 99985, 119982, 159976, 199970, 239964, 259961, 299955, 399940, 479928, 519922, 599910, 779883, 799880, 1039844, 1199820, 1299805, 1559766, 2079688, 2399640, 2599610, 3119532, 3899415, 5199220, 6239064, 7798830, 10398440, 15597660, 31195320]

約数ペア:

[(1, 31195320), (2, 15597660), (3, 10398440), (4, 7798830), (5, 6239064), (6, 5199220), (8, 3899415), (10, 3119532), (12, 2599610), (13, 2399640), (15, 2079688), (20, 1559766), (24, 1299805), (26, 1199820), (30, 1039844), (39, 799880), (40, 779883), (52, 599910), (60, 519922), (65, 479928), (78, 399940), (104, 299955), (120, 259961), (130, 239964), (156, 199970), (195, 159976), (260, 119982), (312, 99985), (390, 79988), (520, 59991), (780, 39994), (1560, 19997)]