72705280

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 176601600

約数和(自身を除く): 103896320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 719, 790, 1264, 1280, 1438, 1580, 2528, 2876, 3160, 3595, 5056, 5752, 6320, 7190, 10112, 11504, 12640, 14380, 20224, 23008, 25280, 28760, 46016, 50560, 56801, 57520, 92032, 101120, 113602, 115040, 184064, 227204, 230080, 284005, 454408, 460160, 568010, 908816, 920320, 1136020, 1817632, 2272040, 3635264, 4544080, 7270528, 9088160, 14541056, 18176320, 36352640, 72705280]

約数ペア:

[(1, 72705280), (2, 36352640), (4, 18176320), (5, 14541056), (8, 9088160), (10, 7270528), (16, 4544080), (20, 3635264), (32, 2272040), (40, 1817632), (64, 1136020), (79, 920320), (80, 908816), (128, 568010), (158, 460160), (160, 454408), (256, 284005), (316, 230080), (320, 227204), (395, 184064), (632, 115040), (640, 113602), (719, 101120), (790, 92032), (1264, 57520), (1280, 56801), (1438, 50560), (1580, 46016), (2528, 28760), (2876, 25280), (3160, 23008), (3595, 20224), (5056, 14380), (5752, 12640), (6320, 11504), (7190, 10112)]