72516340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278909}}^1$

素因数の和:278931

約数の個数: 24

約数和(自身を含む): 163999080

約数和(自身を除く): 91482740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 278909, 557818, 1115636, 1394545, 2789090, 3625817, 5578180, 7251634, 14503268, 18129085, 36258170, 72516340]

約数ペア:

[(1, 72516340), (2, 36258170), (4, 18129085), (5, 14503268), (10, 7251634), (13, 5578180), (20, 3625817), (26, 2789090), (52, 1394545), (65, 1115636), (130, 557818), (260, 278909)]