19481475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 36761040

約数和(自身を除く): 17279565

約数列:

[1, 3, 5, 13, 15, 25, 29, 39, 53, 65, 75, 87, 145, 159, 169, 195, 265, 325, 377, 435, 507, 689, 725, 795, 845, 975, 1131, 1325, 1537, 1885, 2067, 2175, 2535, 3445, 3975, 4225, 4611, 4901, 5655, 7685, 8957, 9425, 10335, 12675, 14703, 17225, 19981, 23055, 24505, 26871, 28275, 38425, 44785, 51675, 59943, 73515, 99905, 115275, 122525, 134355, 223925, 259753, 299715, 367575, 499525, 671775, 779259, 1298765, 1498575, 3896295, 6493825, 19481475]

約数ペア:

[(1, 19481475), (3, 6493825), (5, 3896295), (13, 1498575), (15, 1298765), (25, 779259), (29, 671775), (39, 499525), (53, 367575), (65, 299715), (75, 259753), (87, 223925), (145, 134355), (159, 122525), (169, 115275), (195, 99905), (265, 73515), (325, 59943), (377, 51675), (435, 44785), (507, 38425), (689, 28275), (725, 26871), (795, 24505), (845, 23055), (975, 19981), (1131, 17225), (1325, 14703), (1537, 12675), (1885, 10335), (2067, 9425), (2175, 8957), (2535, 7685), (3445, 5655), (3975, 4901), (4225, 4611)]