392446720

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3881}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 952176960

約数和(自身を除く): 559730240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1580, 2528, 3160, 3881, 5056, 6320, 7762, 10112, 12640, 15524, 19405, 20224, 25280, 31048, 38810, 50560, 62096, 77620, 101120, 124192, 155240, 248384, 306599, 310480, 496768, 613198, 620960, 993536, 1226396, 1241920, 1532995, 2452792, 2483840, 3065990, 4905584, 4967680, 6131980, 9811168, 12263960, 19622336, 24527920, 39244672, 49055840, 78489344, 98111680, 196223360, 392446720]

約数ペア:

[(1, 392446720), (2, 196223360), (4, 98111680), (5, 78489344), (8, 49055840), (10, 39244672), (16, 24527920), (20, 19622336), (32, 12263960), (40, 9811168), (64, 6131980), (79, 4967680), (80, 4905584), (128, 3065990), (158, 2483840), (160, 2452792), (256, 1532995), (316, 1241920), (320, 1226396), (395, 993536), (632, 620960), (640, 613198), (790, 496768), (1264, 310480), (1280, 306599), (1580, 248384), (2528, 155240), (3160, 124192), (3881, 101120), (5056, 77620), (6320, 62096), (7762, 50560), (10112, 38810), (12640, 31048), (15524, 25280), (19405, 20224)]