128801260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9109}}^1$

素因数の和:9226

約数の個数: 48

約数和(自身を含む): 312217920

約数和(自身を除く): 183416660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 9109, 14140, 18218, 36436, 45545, 63763, 91090, 127526, 182180, 255052, 318815, 637630, 920009, 1275260, 1840018, 3680036, 4600045, 6440063, 9200090, 12880126, 18400180, 25760252, 32200315, 64400630, 128801260]

約数ペア:

[(1, 128801260), (2, 64400630), (4, 32200315), (5, 25760252), (7, 18400180), (10, 12880126), (14, 9200090), (20, 6440063), (28, 4600045), (35, 3680036), (70, 1840018), (101, 1275260), (140, 920009), (202, 637630), (404, 318815), (505, 255052), (707, 182180), (1010, 127526), (1414, 91090), (2020, 63763), (2828, 45545), (3535, 36436), (7070, 18218), (9109, 14140)]