25782640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1907}}^1$

素因数の和:1946

約数の個数: 60

約数和(自身を含む): 64944504

約数和(自身を除く): 39161864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 1907, 2704, 3380, 3814, 6760, 7628, 9535, 13520, 15256, 19070, 24791, 30512, 38140, 49582, 76280, 99164, 123955, 152560, 198328, 247910, 322283, 396656, 495820, 644566, 991640, 1289132, 1611415, 1983280, 2578264, 3222830, 5156528, 6445660, 12891320, 25782640]

約数ペア:

[(1, 25782640), (2, 12891320), (4, 6445660), (5, 5156528), (8, 3222830), (10, 2578264), (13, 1983280), (16, 1611415), (20, 1289132), (26, 991640), (40, 644566), (52, 495820), (65, 396656), (80, 322283), (104, 247910), (130, 198328), (169, 152560), (208, 123955), (260, 99164), (338, 76280), (520, 49582), (676, 38140), (845, 30512), (1040, 24791), (1352, 19070), (1690, 15256), (1907, 13520), (2704, 9535), (3380, 7628), (3814, 6760)]