20837300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 51975840

約数和(自身を除く): 31138540

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 997, 1045, 1100, 1900, 1994, 2090, 3988, 4180, 4985, 5225, 9970, 10450, 10967, 18943, 19940, 20900, 21934, 24925, 37886, 43868, 49850, 54835, 75772, 94715, 99700, 109670, 189430, 208373, 219340, 274175, 378860, 416746, 473575, 548350, 833492, 947150, 1041865, 1096700, 1894300, 2083730, 4167460, 5209325, 10418650, 20837300]

約数ペア:

[(1, 20837300), (2, 10418650), (4, 5209325), (5, 4167460), (10, 2083730), (11, 1894300), (19, 1096700), (20, 1041865), (22, 947150), (25, 833492), (38, 548350), (44, 473575), (50, 416746), (55, 378860), (76, 274175), (95, 219340), (100, 208373), (110, 189430), (190, 109670), (209, 99700), (220, 94715), (275, 75772), (380, 54835), (418, 49850), (475, 43868), (550, 37886), (836, 24925), (950, 21934), (997, 20900), (1045, 19940), (1100, 18943), (1900, 10967), (1994, 10450), (2090, 9970), (3988, 5225), (4180, 4985)]