397996880

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 941792400

約数和(自身を除く): 543795520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 173, 193, 298, 346, 386, 596, 692, 745, 772, 865, 965, 1192, 1384, 1490, 1544, 1730, 1930, 2384, 2768, 2980, 3088, 3460, 3860, 5960, 6920, 7720, 11920, 13840, 15440, 25777, 28757, 33389, 51554, 57514, 66778, 103108, 115028, 128885, 133556, 143785, 166945, 206216, 230056, 257770, 267112, 287570, 333890, 412432, 460112, 515540, 534224, 575140, 667780, 1031080, 1150280, 1335560, 2062160, 2300560, 2671120, 4974961, 9949922, 19899844, 24874805, 39799688, 49749610, 79599376, 99499220, 198998440, 397996880]

約数ペア:

[(1, 397996880), (2, 198998440), (4, 99499220), (5, 79599376), (8, 49749610), (10, 39799688), (16, 24874805), (20, 19899844), (40, 9949922), (80, 4974961), (149, 2671120), (173, 2300560), (193, 2062160), (298, 1335560), (346, 1150280), (386, 1031080), (596, 667780), (692, 575140), (745, 534224), (772, 515540), (865, 460112), (965, 412432), (1192, 333890), (1384, 287570), (1490, 267112), (1544, 257770), (1730, 230056), (1930, 206216), (2384, 166945), (2768, 143785), (2980, 133556), (3088, 128885), (3460, 115028), (3860, 103108), (5960, 66778), (6920, 57514), (7720, 51554), (11920, 33389), (13840, 28757), (15440, 25777)]