406493440

素因数分解:

$2^8\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1399}}^1$

素因数の和:1647

約数の個数: 72

約数和(自身を含む): 978667200

約数和(自身を除く): 572173760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 227, 256, 320, 454, 640, 908, 1135, 1280, 1399, 1816, 2270, 2798, 3632, 4540, 5596, 6995, 7264, 9080, 11192, 13990, 14528, 18160, 22384, 27980, 29056, 36320, 44768, 55960, 58112, 72640, 89536, 111920, 145280, 179072, 223840, 290560, 317573, 358144, 447680, 635146, 895360, 1270292, 1587865, 1790720, 2540584, 3175730, 5081168, 6351460, 10162336, 12702920, 20324672, 25405840, 40649344, 50811680, 81298688, 101623360, 203246720, 406493440]

約数ペア:

[(1, 406493440), (2, 203246720), (4, 101623360), (5, 81298688), (8, 50811680), (10, 40649344), (16, 25405840), (20, 20324672), (32, 12702920), (40, 10162336), (64, 6351460), (80, 5081168), (128, 3175730), (160, 2540584), (227, 1790720), (256, 1587865), (320, 1270292), (454, 895360), (640, 635146), (908, 447680), (1135, 358144), (1280, 317573), (1399, 290560), (1816, 223840), (2270, 179072), (2798, 145280), (3632, 111920), (4540, 89536), (5596, 72640), (6995, 58112), (7264, 55960), (9080, 44768), (11192, 36320), (13990, 29056), (14528, 27980), (18160, 22384)]