128222775

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 243637680

約数和(自身を除く): 115414905

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 75, 87, 129, 145, 215, 225, 261, 387, 435, 457, 645, 725, 1075, 1247, 1305, 1371, 1935, 2175, 2285, 3225, 3741, 4113, 6235, 6525, 6855, 9675, 11223, 11425, 13253, 18705, 19651, 20565, 31175, 34275, 39759, 56115, 58953, 66265, 93525, 98255, 102825, 119277, 176859, 198795, 280575, 294765, 331325, 491275, 569879, 596385, 884295, 993975, 1473825, 1709637, 2849395, 2981925, 4421475, 5128911, 8548185, 14246975, 25644555, 42740925, 128222775]

約数ペア:

[(1, 128222775), (3, 42740925), (5, 25644555), (9, 14246975), (15, 8548185), (25, 5128911), (29, 4421475), (43, 2981925), (45, 2849395), (75, 1709637), (87, 1473825), (129, 993975), (145, 884295), (215, 596385), (225, 569879), (261, 491275), (387, 331325), (435, 294765), (457, 280575), (645, 198795), (725, 176859), (1075, 119277), (1247, 102825), (1305, 98255), (1371, 93525), (1935, 66265), (2175, 58953), (2285, 56115), (3225, 39759), (3741, 34275), (4113, 31175), (6235, 20565), (6525, 19651), (6855, 18705), (9675, 13253), (11223, 11425)]