1388431395

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:486

約数の個数: 128

約数和(自身を含む): 2841350400

約数和(自身を除く): 1452919005

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 85, 117, 135, 153, 173, 195, 221, 255, 269, 351, 459, 519, 585, 663, 765, 807, 865, 1105, 1345, 1557, 1755, 1989, 2249, 2295, 2421, 2595, 2941, 3315, 3497, 4035, 4573, 4671, 5967, 6747, 7263, 7785, 8823, 9945, 10491, 11245, 12105, 13719, 14705, 17485, 20241, 22865, 23355, 26469, 29835, 31473, 33735, 36315, 38233, 41157, 44115, 46537, 52455, 59449, 60723, 68595, 79407, 94419, 101205, 114699, 123471, 132345, 139611, 157365, 178347, 191165, 205785, 232685, 297245, 303615, 344097, 397035, 418833, 472095, 535041, 573495, 604981, 617355, 698055, 791129, 891735, 1032291, 1256499, 1605123, 1720485, 1814943, 2094165, 2373387, 2675205, 3024905, 3955645, 5161455, 5444829, 6282495, 7120161, 8025615, 9074715, 10284677, 11866935, 16334487, 21360483, 27224145, 30854031, 35600805, 51423385, 81672435, 92562093, 106802415, 154270155, 277686279, 462810465, 1388431395]

約数ペア:

[(1, 1388431395), (3, 462810465), (5, 277686279), (9, 154270155), (13, 106802415), (15, 92562093), (17, 81672435), (27, 51423385), (39, 35600805), (45, 30854031), (51, 27224145), (65, 21360483), (85, 16334487), (117, 11866935), (135, 10284677), (153, 9074715), (173, 8025615), (195, 7120161), (221, 6282495), (255, 5444829), (269, 5161455), (351, 3955645), (459, 3024905), (519, 2675205), (585, 2373387), (663, 2094165), (765, 1814943), (807, 1720485), (865, 1605123), (1105, 1256499), (1345, 1032291), (1557, 891735), (1755, 791129), (1989, 698055), (2249, 617355), (2295, 604981), (2421, 573495), (2595, 535041), (2941, 472095), (3315, 418833), (3497, 397035), (4035, 344097), (4573, 303615), (4671, 297245), (5967, 232685), (6747, 205785), (7263, 191165), (7785, 178347), (8823, 157365), (9945, 139611), (10491, 132345), (11245, 123471), (12105, 114699), (13719, 101205), (14705, 94419), (17485, 79407), (20241, 68595), (22865, 60723), (23355, 59449), (26469, 52455), (29835, 46537), (31473, 44115), (33735, 41157), (36315, 38233)]