78253720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115079}}^1$

素因数の和:115107

約数の個数: 32

約数和(自身を含む): 186429600

約数和(自身を除く): 108175880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115079, 230158, 460316, 575395, 920632, 1150790, 1956343, 2301580, 3912686, 4603160, 7825372, 9781715, 15650744, 19563430, 39126860, 78253720]

約数ペア:

[(1, 78253720), (2, 39126860), (4, 19563430), (5, 15650744), (8, 9781715), (10, 7825372), (17, 4603160), (20, 3912686), (34, 2301580), (40, 1956343), (68, 1150790), (85, 920632), (136, 575395), (170, 460316), (340, 230158), (680, 115079)]