68715280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{14081}}^1$

素因数の和:14155

約数の個数: 40

約数和(自身を含む): 162393624

約数和(自身を除く): 93678344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 14081, 28162, 56324, 70405, 112648, 140810, 225296, 281620, 563240, 858941, 1126480, 1717882, 3435764, 4294705, 6871528, 8589410, 13743056, 17178820, 34357640, 68715280]

約数ペア:

[(1, 68715280), (2, 34357640), (4, 17178820), (5, 13743056), (8, 8589410), (10, 6871528), (16, 4294705), (20, 3435764), (40, 1717882), (61, 1126480), (80, 858941), (122, 563240), (244, 281620), (305, 225296), (488, 140810), (610, 112648), (976, 70405), (1220, 56324), (2440, 28162), (4880, 14081)]