40277680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 98208000

約数和(自身を除く): 57930320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 109, 124, 149, 155, 218, 248, 298, 310, 436, 496, 545, 596, 620, 745, 872, 1090, 1192, 1240, 1490, 1744, 2180, 2384, 2480, 2980, 3379, 4360, 4619, 5960, 6758, 8720, 9238, 11920, 13516, 16241, 16895, 18476, 23095, 27032, 32482, 33790, 36952, 46190, 54064, 64964, 67580, 73904, 81205, 92380, 129928, 135160, 162410, 184760, 259856, 270320, 324820, 369520, 503471, 649640, 1006942, 1299280, 2013884, 2517355, 4027768, 5034710, 8055536, 10069420, 20138840, 40277680]

約数ペア:

[(1, 40277680), (2, 20138840), (4, 10069420), (5, 8055536), (8, 5034710), (10, 4027768), (16, 2517355), (20, 2013884), (31, 1299280), (40, 1006942), (62, 649640), (80, 503471), (109, 369520), (124, 324820), (149, 270320), (155, 259856), (218, 184760), (248, 162410), (298, 135160), (310, 129928), (436, 92380), (496, 81205), (545, 73904), (596, 67580), (620, 64964), (745, 54064), (872, 46190), (1090, 36952), (1192, 33790), (1240, 32482), (1490, 27032), (1744, 23095), (2180, 18476), (2384, 16895), (2480, 16241), (2980, 13516), (3379, 11920), (4360, 9238), (4619, 8720), (5960, 6758)]