256392396

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2753}}^1$

素因数の和:2975

約数の個数: 72

約数和(自身を含む): 701719200

約数和(自身を除く): 445326804

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 199, 234, 398, 468, 597, 796, 1194, 1791, 2388, 2587, 2753, 3582, 5174, 5506, 7164, 7761, 8259, 10348, 11012, 15522, 16518, 23283, 24777, 31044, 33036, 35789, 46566, 49554, 71578, 93132, 99108, 107367, 143156, 214734, 322101, 429468, 547847, 644202, 1095694, 1288404, 1643541, 2191388, 3287082, 4930623, 6574164, 7122011, 9861246, 14244022, 19722492, 21366033, 28488044, 42732066, 64098099, 85464132, 128196198, 256392396]

約数ペア:

[(1, 256392396), (2, 128196198), (3, 85464132), (4, 64098099), (6, 42732066), (9, 28488044), (12, 21366033), (13, 19722492), (18, 14244022), (26, 9861246), (36, 7122011), (39, 6574164), (52, 4930623), (78, 3287082), (117, 2191388), (156, 1643541), (199, 1288404), (234, 1095694), (398, 644202), (468, 547847), (597, 429468), (796, 322101), (1194, 214734), (1791, 143156), (2388, 107367), (2587, 99108), (2753, 93132), (3582, 71578), (5174, 49554), (5506, 46566), (7164, 35789), (7761, 33036), (8259, 31044), (10348, 24777), (11012, 23283), (15522, 16518)]