128352780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1429}}^1$

素因数の和:1943

約数の個数: 72

約数和(自身を含む): 390390000

約数和(自身を除く): 262037220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 998, 1429, 1497, 1996, 2495, 2858, 2994, 4287, 4491, 4990, 5716, 5988, 7145, 7485, 8574, 8982, 9980, 12861, 14290, 14970, 17148, 17964, 21435, 22455, 25722, 28580, 29940, 42870, 44910, 51444, 64305, 85740, 89820, 128610, 257220, 713071, 1426142, 2139213, 2852284, 3565355, 4278426, 6417639, 7130710, 8556852, 10696065, 12835278, 14261420, 21392130, 25670556, 32088195, 42784260, 64176390, 128352780]

約数ペア:

[(1, 128352780), (2, 64176390), (3, 42784260), (4, 32088195), (5, 25670556), (6, 21392130), (9, 14261420), (10, 12835278), (12, 10696065), (15, 8556852), (18, 7130710), (20, 6417639), (30, 4278426), (36, 3565355), (45, 2852284), (60, 2139213), (90, 1426142), (180, 713071), (499, 257220), (998, 128610), (1429, 89820), (1497, 85740), (1996, 64305), (2495, 51444), (2858, 44910), (2994, 42870), (4287, 29940), (4491, 28580), (4990, 25722), (5716, 22455), (5988, 21435), (7145, 17964), (7485, 17148), (8574, 14970), (8982, 14290), (9980, 12861)]