1300640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{739}}^1$

素因数の和:765

約数の個数: 48

約数和(自身を含む): 3356640

約数和(自身を除く): 2056000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 739, 880, 1478, 1760, 2956, 3695, 5912, 7390, 8129, 11824, 14780, 16258, 23648, 29560, 32516, 40645, 59120, 65032, 81290, 118240, 130064, 162580, 260128, 325160, 650320, 1300640]

約数ペア:

[(1, 1300640), (2, 650320), (4, 325160), (5, 260128), (8, 162580), (10, 130064), (11, 118240), (16, 81290), (20, 65032), (22, 59120), (32, 40645), (40, 32516), (44, 29560), (55, 23648), (80, 16258), (88, 14780), (110, 11824), (160, 8129), (176, 7390), (220, 5912), (352, 3695), (440, 2956), (739, 1760), (880, 1478)]