78180025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2434

約数の個数: 48

約数和(自身を含む): 128027520

約数和(自身を除く): 49847495

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 385, 425, 595, 935, 1309, 1925, 2389, 2975, 4675, 6545, 11945, 16723, 26279, 32725, 40613, 59725, 83615, 131395, 183953, 203065, 284291, 418075, 446743, 656975, 919765, 1015325, 1421455, 2233715, 3127201, 4598825, 7107275, 11168575, 15636005, 78180025]

約数ペア:

[(1, 78180025), (5, 15636005), (7, 11168575), (11, 7107275), (17, 4598825), (25, 3127201), (35, 2233715), (55, 1421455), (77, 1015325), (85, 919765), (119, 656975), (175, 446743), (187, 418075), (275, 284291), (385, 203065), (425, 183953), (595, 131395), (935, 83615), (1309, 59725), (1925, 40613), (2389, 32725), (2975, 26279), (4675, 16723), (6545, 11945)]