90545920

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 218985984

約数和(自身を除く): 128440064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 557, 635, 640, 1016, 1114, 1270, 1280, 2032, 2228, 2540, 2785, 4064, 4456, 5080, 5570, 8128, 8912, 10160, 11140, 16256, 17824, 20320, 22280, 32512, 35648, 40640, 44560, 70739, 71296, 81280, 89120, 141478, 142592, 162560, 178240, 282956, 353695, 356480, 565912, 707390, 712960, 1131824, 1414780, 2263648, 2829560, 4527296, 5659120, 9054592, 11318240, 18109184, 22636480, 45272960, 90545920]

約数ペア:

[(1, 90545920), (2, 45272960), (4, 22636480), (5, 18109184), (8, 11318240), (10, 9054592), (16, 5659120), (20, 4527296), (32, 2829560), (40, 2263648), (64, 1414780), (80, 1131824), (127, 712960), (128, 707390), (160, 565912), (254, 356480), (256, 353695), (320, 282956), (508, 178240), (557, 162560), (635, 142592), (640, 141478), (1016, 89120), (1114, 81280), (1270, 71296), (1280, 70739), (2032, 44560), (2228, 40640), (2540, 35648), (2785, 32512), (4064, 22280), (4456, 20320), (5080, 17824), (5570, 16256), (8128, 11140), (8912, 10160)]