1312910450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 2684352000

約数和(自身を除く): 1371441550

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 109, 155, 190, 218, 310, 409, 475, 545, 589, 775, 818, 950, 1090, 1178, 1550, 2045, 2071, 2725, 2945, 3379, 4090, 4142, 5450, 5890, 6758, 7771, 10225, 10355, 12679, 14725, 15542, 16895, 20450, 20710, 25358, 29450, 33790, 38855, 44581, 51775, 63395, 64201, 77710, 84475, 89162, 103550, 126790, 128402, 168950, 194275, 222905, 240901, 316975, 321005, 388550, 445810, 481802, 633950, 642010, 847039, 1114525, 1204505, 1382011, 1605025, 1694078, 2229050, 2409010, 2764022, 3210050, 4235195, 6022525, 6910055, 8470390, 12045050, 13820110, 21175975, 26258209, 34550275, 42351950, 52516418, 69100550, 131291045, 262582090, 656455225, 1312910450]

約数ペア:

[(1, 1312910450), (2, 656455225), (5, 262582090), (10, 131291045), (19, 69100550), (25, 52516418), (31, 42351950), (38, 34550275), (50, 26258209), (62, 21175975), (95, 13820110), (109, 12045050), (155, 8470390), (190, 6910055), (218, 6022525), (310, 4235195), (409, 3210050), (475, 2764022), (545, 2409010), (589, 2229050), (775, 1694078), (818, 1605025), (950, 1382011), (1090, 1204505), (1178, 1114525), (1550, 847039), (2045, 642010), (2071, 633950), (2725, 481802), (2945, 445810), (3379, 388550), (4090, 321005), (4142, 316975), (5450, 240901), (5890, 222905), (6758, 194275), (7771, 168950), (10225, 128402), (10355, 126790), (12679, 103550), (14725, 89162), (15542, 84475), (16895, 77710), (20450, 64201), (20710, 63395), (25358, 51775), (29450, 44581), (33790, 38855)]