20550180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{433}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 66495744

約数和(自身を除く): 45945564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 420, 433, 452, 565, 678, 791, 866, 1130, 1299, 1356, 1582, 1695, 1732, 2165, 2260, 2373, 2598, 3031, 3164, 3390, 3955, 4330, 4746, 5196, 6062, 6495, 6780, 7910, 8660, 9093, 9492, 11865, 12124, 12990, 15155, 15820, 18186, 23730, 25980, 30310, 36372, 45465, 47460, 48929, 60620, 90930, 97858, 146787, 181860, 195716, 244645, 293574, 342503, 489290, 587148, 685006, 733935, 978580, 1027509, 1370012, 1467870, 1712515, 2055018, 2935740, 3425030, 4110036, 5137545, 6850060, 10275090, 20550180]

約数ペア:

[(1, 20550180), (2, 10275090), (3, 6850060), (4, 5137545), (5, 4110036), (6, 3425030), (7, 2935740), (10, 2055018), (12, 1712515), (14, 1467870), (15, 1370012), (20, 1027509), (21, 978580), (28, 733935), (30, 685006), (35, 587148), (42, 489290), (60, 342503), (70, 293574), (84, 244645), (105, 195716), (113, 181860), (140, 146787), (210, 97858), (226, 90930), (339, 60620), (420, 48929), (433, 47460), (452, 45465), (565, 36372), (678, 30310), (791, 25980), (866, 23730), (1130, 18186), (1299, 15820), (1356, 15155), (1582, 12990), (1695, 12124), (1732, 11865), (2165, 9492), (2260, 9093), (2373, 8660), (2598, 7910), (3031, 6780), (3164, 6495), (3390, 6062), (3955, 5196), (4330, 4746)]