1280336320

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{613}}^1$

素因数の和:798

約数の個数: 112

約数和(自身を含む): 3132844128

約数和(自身を除く): 1852507808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 107, 122, 160, 214, 244, 305, 320, 428, 488, 535, 610, 613, 856, 976, 1070, 1220, 1226, 1712, 1952, 2140, 2440, 2452, 3065, 3424, 3904, 4280, 4880, 4904, 6130, 6527, 6848, 8560, 9760, 9808, 12260, 13054, 17120, 19520, 19616, 24520, 26108, 32635, 34240, 37393, 39232, 49040, 52216, 65270, 65591, 74786, 98080, 104432, 130540, 131182, 149572, 186965, 196160, 208864, 261080, 262364, 299144, 327955, 373930, 417728, 522160, 524728, 598288, 655910, 747860, 1044320, 1049456, 1196576, 1311820, 1495720, 2088640, 2098912, 2393152, 2623640, 2991440, 4001051, 4197824, 5247280, 5982880, 8002102, 10494560, 11965760, 16004204, 20005255, 20989120, 32008408, 40010510, 64016816, 80021020, 128033632, 160042040, 256067264, 320084080, 640168160, 1280336320]

約数ペア:

[(1, 1280336320), (2, 640168160), (4, 320084080), (5, 256067264), (8, 160042040), (10, 128033632), (16, 80021020), (20, 64016816), (32, 40010510), (40, 32008408), (61, 20989120), (64, 20005255), (80, 16004204), (107, 11965760), (122, 10494560), (160, 8002102), (214, 5982880), (244, 5247280), (305, 4197824), (320, 4001051), (428, 2991440), (488, 2623640), (535, 2393152), (610, 2098912), (613, 2088640), (856, 1495720), (976, 1311820), (1070, 1196576), (1220, 1049456), (1226, 1044320), (1712, 747860), (1952, 655910), (2140, 598288), (2440, 524728), (2452, 522160), (3065, 417728), (3424, 373930), (3904, 327955), (4280, 299144), (4880, 262364), (4904, 261080), (6130, 208864), (6527, 196160), (6848, 186965), (8560, 149572), (9760, 131182), (9808, 130540), (12260, 104432), (13054, 98080), (17120, 74786), (19520, 65591), (19616, 65270), (24520, 52216), (26108, 49040), (32635, 39232), (34240, 37393)]