20816200

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 51949800

約数和(自身を除く): 31133600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 37, 40, 50, 58, 74, 97, 100, 116, 145, 148, 185, 194, 200, 232, 290, 296, 370, 388, 485, 580, 725, 740, 776, 925, 970, 1073, 1160, 1450, 1480, 1850, 1940, 2146, 2425, 2813, 2900, 3589, 3700, 3880, 4292, 4850, 5365, 5626, 5800, 7178, 7400, 8584, 9700, 10730, 11252, 14065, 14356, 17945, 19400, 21460, 22504, 26825, 28130, 28712, 35890, 42920, 53650, 56260, 70325, 71780, 89725, 104081, 107300, 112520, 140650, 143560, 179450, 208162, 214600, 281300, 358900, 416324, 520405, 562600, 717800, 832648, 1040810, 2081620, 2602025, 4163240, 5204050, 10408100, 20816200]

約数ペア:

[(1, 20816200), (2, 10408100), (4, 5204050), (5, 4163240), (8, 2602025), (10, 2081620), (20, 1040810), (25, 832648), (29, 717800), (37, 562600), (40, 520405), (50, 416324), (58, 358900), (74, 281300), (97, 214600), (100, 208162), (116, 179450), (145, 143560), (148, 140650), (185, 112520), (194, 107300), (200, 104081), (232, 89725), (290, 71780), (296, 70325), (370, 56260), (388, 53650), (485, 42920), (580, 35890), (725, 28712), (740, 28130), (776, 26825), (925, 22504), (970, 21460), (1073, 19400), (1160, 17945), (1450, 14356), (1480, 14065), (1850, 11252), (1940, 10730), (2146, 9700), (2425, 8584), (2813, 7400), (2900, 7178), (3589, 5800), (3700, 5626), (3880, 5365), (4292, 4850)]