20219300

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 46872000

約数和(自身を除く): 26652700

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 59, 92, 100, 115, 118, 149, 230, 236, 295, 298, 460, 575, 590, 596, 745, 1150, 1180, 1357, 1475, 1490, 2300, 2714, 2950, 2980, 3427, 3725, 5428, 5900, 6785, 6854, 7450, 8791, 13570, 13708, 14900, 17135, 17582, 27140, 33925, 34270, 35164, 43955, 67850, 68540, 85675, 87910, 135700, 171350, 175820, 202193, 219775, 342700, 404386, 439550, 808772, 879100, 1010965, 2021930, 4043860, 5054825, 10109650, 20219300]

約数ペア:

[(1, 20219300), (2, 10109650), (4, 5054825), (5, 4043860), (10, 2021930), (20, 1010965), (23, 879100), (25, 808772), (46, 439550), (50, 404386), (59, 342700), (92, 219775), (100, 202193), (115, 175820), (118, 171350), (149, 135700), (230, 87910), (236, 85675), (295, 68540), (298, 67850), (460, 43955), (575, 35164), (590, 34270), (596, 33925), (745, 27140), (1150, 17582), (1180, 17135), (1357, 14900), (1475, 13708), (1490, 13570), (2300, 8791), (2714, 7450), (2950, 6854), (2980, 6785), (3427, 5900), (3725, 5428)]