20597900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 48486480

約数和(自身を除く): 27888580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 185, 190, 293, 370, 380, 475, 586, 703, 740, 925, 950, 1172, 1406, 1465, 1850, 1900, 2812, 2930, 3515, 3700, 5567, 5860, 7030, 7325, 10841, 11134, 14060, 14650, 17575, 21682, 22268, 27835, 29300, 35150, 43364, 54205, 55670, 70300, 108410, 111340, 139175, 205979, 216820, 271025, 278350, 411958, 542050, 556700, 823916, 1029895, 1084100, 2059790, 4119580, 5149475, 10298950, 20597900]

約数ペア:

[(1, 20597900), (2, 10298950), (4, 5149475), (5, 4119580), (10, 2059790), (19, 1084100), (20, 1029895), (25, 823916), (37, 556700), (38, 542050), (50, 411958), (74, 278350), (76, 271025), (95, 216820), (100, 205979), (148, 139175), (185, 111340), (190, 108410), (293, 70300), (370, 55670), (380, 54205), (475, 43364), (586, 35150), (703, 29300), (740, 27835), (925, 22268), (950, 21682), (1172, 17575), (1406, 14650), (1465, 14060), (1850, 11134), (1900, 10841), (2812, 7325), (2930, 7030), (3515, 5860), (3700, 5567)]