78876770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{557}}^1$

素因数の和:612

約数の個数: 72

約数和(自身を含む): 175759956

約数和(自身を除く): 96883186

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 289, 490, 557, 578, 595, 833, 1114, 1190, 1445, 1666, 2023, 2785, 2890, 3899, 4046, 4165, 5570, 7798, 8330, 9469, 10115, 14161, 18938, 19495, 20230, 27293, 28322, 38990, 47345, 54586, 66283, 70805, 94690, 132566, 136465, 141610, 160973, 272930, 321946, 331415, 463981, 662830, 804865, 927962, 1126811, 1609730, 2253622, 2319905, 4639810, 5634055, 7887677, 11268110, 15775354, 39438385, 78876770]

約数ペア:

[(1, 78876770), (2, 39438385), (5, 15775354), (7, 11268110), (10, 7887677), (14, 5634055), (17, 4639810), (34, 2319905), (35, 2253622), (49, 1609730), (70, 1126811), (85, 927962), (98, 804865), (119, 662830), (170, 463981), (238, 331415), (245, 321946), (289, 272930), (490, 160973), (557, 141610), (578, 136465), (595, 132566), (833, 94690), (1114, 70805), (1190, 66283), (1445, 54586), (1666, 47345), (2023, 38990), (2785, 28322), (2890, 27293), (3899, 20230), (4046, 19495), (4165, 18938), (5570, 14161), (7798, 10115), (8330, 9469)]