80451550

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 153673200

約数和(自身を除く): 73221650

約数列:

[1, 2, 5, 10, 25, 50, 89, 101, 178, 179, 202, 358, 445, 505, 890, 895, 1010, 1790, 2225, 2525, 4450, 4475, 5050, 8950, 8989, 15931, 17978, 18079, 31862, 36158, 44945, 79655, 89890, 90395, 159310, 180790, 224725, 398275, 449450, 451975, 796550, 903950, 1609031, 3218062, 8045155, 16090310, 40225775, 80451550]

約数ペア:

[(1, 80451550), (2, 40225775), (5, 16090310), (10, 8045155), (25, 3218062), (50, 1609031), (89, 903950), (101, 796550), (178, 451975), (179, 449450), (202, 398275), (358, 224725), (445, 180790), (505, 159310), (890, 90395), (895, 89890), (1010, 79655), (1790, 44945), (2225, 36158), (2525, 31862), (4450, 18079), (4475, 17978), (5050, 15931), (8950, 8989)]