72431320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139291}}^1$

素因数の和:139315

約数の個数: 32

約数和(自身を含む): 175507920

約数和(自身を除く): 103076600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139291, 278582, 557164, 696455, 1114328, 1392910, 1810783, 2785820, 3621566, 5571640, 7243132, 9053915, 14486264, 18107830, 36215660, 72431320]

約数ペア:

[(1, 72431320), (2, 36215660), (4, 18107830), (5, 14486264), (8, 9053915), (10, 7243132), (13, 5571640), (20, 3621566), (26, 2785820), (40, 1810783), (52, 1392910), (65, 1114328), (104, 696455), (130, 557164), (260, 278582), (520, 139291)]