189397760

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1873}}^1$

素因数の和:1973

約数の個数: 72

約数和(自身を含む): 459654720

約数和(自身を除く): 270256960

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, 1873, 2528, 3160, 3746, 5056, 6320, 7492, 9365, 10112, 12640, 14984, 18730, 20224, 25280, 29968, 37460, 50560, 59936, 74920, 101120, 119872, 147967, 149840, 239744, 295934, 299680, 479488, 591868, 599360, 739835, 1183736, 1198720, 1479670, 2367472, 2397440, 2959340, 4734944, 5918680, 9469888, 11837360, 18939776, 23674720, 37879552, 47349440, 94698880, 189397760]

約数ペア:

[(1, 189397760), (2, 94698880), (4, 47349440), (5, 37879552), (8, 23674720), (10, 18939776), (16, 11837360), (20, 9469888), (32, 5918680), (40, 4734944), (64, 2959340), (79, 2397440), (80, 2367472), (128, 1479670), (158, 1198720), (160, 1183736), (256, 739835), (316, 599360), (320, 591868), (395, 479488), (632, 299680), (640, 295934), (790, 239744), (1264, 149840), (1280, 147967), (1580, 119872), (1873, 101120), (2528, 74920), (3160, 59936), (3746, 50560), (5056, 37460), (6320, 29968), (7492, 25280), (9365, 20224), (10112, 18730), (12640, 14984)]