197683840

素因数分解:

$2^7\times 5^1\times {\mathrm{499}}^1\times {\mathrm{619}}^1$

素因数の和:1137

約数の個数: 64

約数和(自身を含む): 474300000

約数和(自身を除く): 276616160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 499, 619, 640, 998, 1238, 1996, 2476, 2495, 3095, 3992, 4952, 4990, 6190, 7984, 9904, 9980, 12380, 15968, 19808, 19960, 24760, 31936, 39616, 39920, 49520, 63872, 79232, 79840, 99040, 159680, 198080, 308881, 319360, 396160, 617762, 1235524, 1544405, 2471048, 3088810, 4942096, 6177620, 9884192, 12355240, 19768384, 24710480, 39536768, 49420960, 98841920, 197683840]

約数ペア:

[(1, 197683840), (2, 98841920), (4, 49420960), (5, 39536768), (8, 24710480), (10, 19768384), (16, 12355240), (20, 9884192), (32, 6177620), (40, 4942096), (64, 3088810), (80, 2471048), (128, 1544405), (160, 1235524), (320, 617762), (499, 396160), (619, 319360), (640, 308881), (998, 198080), (1238, 159680), (1996, 99040), (2476, 79840), (2495, 79232), (3095, 63872), (3992, 49520), (4952, 39920), (4990, 39616), (6190, 31936), (7984, 24760), (9904, 19960), (9980, 19808), (12380, 15968)]