68980760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 159563520

約数和(自身を除く): 90582760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 107, 142, 214, 227, 284, 355, 428, 454, 535, 568, 710, 856, 908, 1070, 1135, 1420, 1816, 2140, 2270, 2840, 4280, 4540, 7597, 9080, 15194, 16117, 24289, 30388, 32234, 37985, 48578, 60776, 64468, 75970, 80585, 97156, 121445, 128936, 151940, 161170, 194312, 242890, 303880, 322340, 485780, 644680, 971560, 1724519, 3449038, 6898076, 8622595, 13796152, 17245190, 34490380, 68980760]

約数ペア:

[(1, 68980760), (2, 34490380), (4, 17245190), (5, 13796152), (8, 8622595), (10, 6898076), (20, 3449038), (40, 1724519), (71, 971560), (107, 644680), (142, 485780), (214, 322340), (227, 303880), (284, 242890), (355, 194312), (428, 161170), (454, 151940), (535, 128936), (568, 121445), (710, 97156), (856, 80585), (908, 75970), (1070, 64468), (1135, 60776), (1420, 48578), (1816, 37985), (2140, 32234), (2270, 30388), (2840, 24289), (4280, 16117), (4540, 15194), (7597, 9080)]