641125120

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10657}}^1$

素因数の和:10725

約数の個数: 72

約数和(自身を含む): 1568516544

約数和(自身を除く): 927391424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 256, 320, 376, 470, 640, 752, 940, 1280, 1504, 1880, 3008, 3760, 6016, 7520, 10657, 12032, 15040, 21314, 30080, 42628, 53285, 60160, 85256, 106570, 170512, 213140, 341024, 426280, 500879, 682048, 852560, 1001758, 1364096, 1705120, 2003516, 2504395, 2728192, 3410240, 4007032, 5008790, 6820480, 8014064, 10017580, 13640960, 16028128, 20035160, 32056256, 40070320, 64112512, 80140640, 128225024, 160281280, 320562560, 641125120]

約数ペア:

[(1, 641125120), (2, 320562560), (4, 160281280), (5, 128225024), (8, 80140640), (10, 64112512), (16, 40070320), (20, 32056256), (32, 20035160), (40, 16028128), (47, 13640960), (64, 10017580), (80, 8014064), (94, 6820480), (128, 5008790), (160, 4007032), (188, 3410240), (235, 2728192), (256, 2504395), (320, 2003516), (376, 1705120), (470, 1364096), (640, 1001758), (752, 852560), (940, 682048), (1280, 500879), (1504, 426280), (1880, 341024), (3008, 213140), (3760, 170512), (6016, 106570), (7520, 85256), (10657, 60160), (12032, 53285), (15040, 42628), (21314, 30080)]