78783640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151507}}^1$

素因数の和:151531

約数の個数: 32

約数和(自身を含む): 190900080

約数和(自身を除く): 112116440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151507, 303014, 606028, 757535, 1212056, 1515070, 1969591, 3030140, 3939182, 6060280, 7878364, 9847955, 15756728, 19695910, 39391820, 78783640]

約数ペア:

[(1, 78783640), (2, 39391820), (4, 19695910), (5, 15756728), (8, 9847955), (10, 7878364), (13, 6060280), (20, 3939182), (26, 3030140), (40, 1969591), (52, 1515070), (65, 1212056), (104, 757535), (130, 606028), (260, 303014), (520, 151507)]