2551614920

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1\times {\mathrm{1789}}^1$

素因数の和:2178

約数の個数: 64

約数和(自身を含む): 5805399600

約数和(自身を除く): 3253784680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 197, 362, 394, 724, 788, 905, 985, 1448, 1576, 1789, 1810, 1970, 3578, 3620, 3940, 7156, 7240, 7880, 8945, 14312, 17890, 35657, 35780, 71314, 71560, 142628, 178285, 285256, 323809, 352433, 356570, 647618, 704866, 713140, 1295236, 1409732, 1426280, 1619045, 1762165, 2590472, 2819464, 3238090, 3524330, 6476180, 7048660, 12952360, 14097320, 63790373, 127580746, 255161492, 318951865, 510322984, 637903730, 1275807460, 2551614920]

約数ペア:

[(1, 2551614920), (2, 1275807460), (4, 637903730), (5, 510322984), (8, 318951865), (10, 255161492), (20, 127580746), (40, 63790373), (181, 14097320), (197, 12952360), (362, 7048660), (394, 6476180), (724, 3524330), (788, 3238090), (905, 2819464), (985, 2590472), (1448, 1762165), (1576, 1619045), (1789, 1426280), (1810, 1409732), (1970, 1295236), (3578, 713140), (3620, 704866), (3940, 647618), (7156, 356570), (7240, 352433), (7880, 323809), (8945, 285256), (14312, 178285), (17890, 142628), (35657, 71560), (35780, 71314)]