13880560

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 34640640

約数和(自身を除く): 20760080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 193, 232, 248, 290, 310, 386, 464, 496, 580, 620, 772, 899, 965, 1160, 1240, 1544, 1798, 1930, 2320, 2480, 3088, 3596, 3860, 4495, 5597, 5983, 7192, 7720, 8990, 11194, 11966, 14384, 15440, 17980, 22388, 23932, 27985, 29915, 35960, 44776, 47864, 55970, 59830, 71920, 89552, 95728, 111940, 119660, 173507, 223880, 239320, 347014, 447760, 478640, 694028, 867535, 1388056, 1735070, 2776112, 3470140, 6940280, 13880560]

約数ペア:

[(1, 13880560), (2, 6940280), (4, 3470140), (5, 2776112), (8, 1735070), (10, 1388056), (16, 867535), (20, 694028), (29, 478640), (31, 447760), (40, 347014), (58, 239320), (62, 223880), (80, 173507), (116, 119660), (124, 111940), (145, 95728), (155, 89552), (193, 71920), (232, 59830), (248, 55970), (290, 47864), (310, 44776), (386, 35960), (464, 29915), (496, 27985), (580, 23932), (620, 22388), (772, 17980), (899, 15440), (965, 14384), (1160, 11966), (1240, 11194), (1544, 8990), (1798, 7720), (1930, 7192), (2320, 5983), (2480, 5597), (3088, 4495), (3596, 3860)]