2388257980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1115

約数の個数: 72

約数和(自身を含む): 5225928624

約数和(自身を除く): 2837670644

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 274, 310, 548, 620, 685, 907, 961, 1370, 1814, 1922, 2740, 3628, 3844, 4247, 4535, 4805, 8494, 9070, 9610, 16988, 18140, 19220, 21235, 28117, 42470, 56234, 84940, 112468, 124259, 131657, 140585, 248518, 263314, 281170, 497036, 526628, 562340, 621295, 658285, 871627, 1242590, 1316570, 1743254, 2485180, 2633140, 3486508, 3852029, 4358135, 7704058, 8716270, 15408116, 17432540, 19260145, 38520290, 77040580, 119412899, 238825798, 477651596, 597064495, 1194128990, 2388257980]

約数ペア:

[(1, 2388257980), (2, 1194128990), (4, 597064495), (5, 477651596), (10, 238825798), (20, 119412899), (31, 77040580), (62, 38520290), (124, 19260145), (137, 17432540), (155, 15408116), (274, 8716270), (310, 7704058), (548, 4358135), (620, 3852029), (685, 3486508), (907, 2633140), (961, 2485180), (1370, 1743254), (1814, 1316570), (1922, 1242590), (2740, 871627), (3628, 658285), (3844, 621295), (4247, 562340), (4535, 526628), (4805, 497036), (8494, 281170), (9070, 263314), (9610, 248518), (16988, 140585), (18140, 131657), (19220, 124259), (21235, 112468), (28117, 84940), (42470, 56234)]