72467720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139361}}^1$

素因数の和:139385

約数の個数: 32

約数和(自身を含む): 175596120

約数和(自身を除く): 103128400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139361, 278722, 557444, 696805, 1114888, 1393610, 1811693, 2787220, 3623386, 5574440, 7246772, 9058465, 14493544, 18116930, 36233860, 72467720]

約数ペア:

[(1, 72467720), (2, 36233860), (4, 18116930), (5, 14493544), (8, 9058465), (10, 7246772), (13, 5574440), (20, 3623386), (26, 2787220), (40, 1811693), (52, 1393610), (65, 1114888), (104, 696805), (130, 557444), (260, 278722), (520, 139361)]