72870928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{18439}}^1$

素因数の和:18479

約数の個数: 40

約数和(自身を含む): 160059200

約数和(自身を除く): 87188272

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 18439, 36878, 73756, 147512, 239707, 295024, 350341, 479414, 700682, 958828, 1401364, 1917656, 2802728, 3835312, 4554433, 5605456, 9108866, 18217732, 36435464, 72870928]

約数ペア:

[(1, 72870928), (2, 36435464), (4, 18217732), (8, 9108866), (13, 5605456), (16, 4554433), (19, 3835312), (26, 2802728), (38, 1917656), (52, 1401364), (76, 958828), (104, 700682), (152, 479414), (208, 350341), (247, 295024), (304, 239707), (494, 147512), (988, 73756), (1976, 36878), (3952, 18439)]