72246640

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 173426400

約数和(自身を除く): 101179760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 89, 139, 146, 178, 278, 292, 356, 365, 445, 556, 584, 695, 712, 730, 890, 1112, 1168, 1390, 1424, 1460, 1780, 2224, 2780, 2920, 3560, 5560, 5840, 6497, 7120, 10147, 11120, 12371, 12994, 20294, 24742, 25988, 32485, 40588, 49484, 50735, 51976, 61855, 64970, 81176, 98968, 101470, 103952, 123710, 129940, 162352, 197936, 202940, 247420, 259880, 405880, 494840, 519760, 811760, 903083, 989680, 1806166, 3612332, 4515415, 7224664, 9030830, 14449328, 18061660, 36123320, 72246640]

約数ペア:

[(1, 72246640), (2, 36123320), (4, 18061660), (5, 14449328), (8, 9030830), (10, 7224664), (16, 4515415), (20, 3612332), (40, 1806166), (73, 989680), (80, 903083), (89, 811760), (139, 519760), (146, 494840), (178, 405880), (278, 259880), (292, 247420), (356, 202940), (365, 197936), (445, 162352), (556, 129940), (584, 123710), (695, 103952), (712, 101470), (730, 98968), (890, 81176), (1112, 64970), (1168, 61855), (1390, 51976), (1424, 50735), (1460, 49484), (1780, 40588), (2224, 32485), (2780, 25988), (2920, 24742), (3560, 20294), (5560, 12994), (5840, 12371), (6497, 11120), (7120, 10147)]