20780550

素因数分解:

$2^1\times 3^4\times 5^2\times 7^1\times {\mathrm{733}}^1$

素因数の和:764

約数の個数: 120

約数和(自身を含む): 66077616

約数和(自身を除く): 45297066

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 81, 90, 105, 126, 135, 150, 162, 175, 189, 210, 225, 270, 315, 350, 378, 405, 450, 525, 567, 630, 675, 733, 810, 945, 1050, 1134, 1350, 1466, 1575, 1890, 2025, 2199, 2835, 3150, 3665, 4050, 4398, 4725, 5131, 5670, 6597, 7330, 9450, 10262, 10995, 13194, 14175, 15393, 18325, 19791, 21990, 25655, 28350, 30786, 32985, 36650, 39582, 46179, 51310, 54975, 59373, 65970, 76965, 92358, 98955, 109950, 118746, 128275, 138537, 153930, 164925, 197910, 230895, 256550, 277074, 296865, 329850, 384825, 415611, 461790, 494775, 593730, 692685, 769650, 831222, 989550, 1154475, 1385370, 1484325, 2078055, 2308950, 2968650, 3463425, 4156110, 6926850, 10390275, 20780550]

約数ペア:

[(1, 20780550), (2, 10390275), (3, 6926850), (5, 4156110), (6, 3463425), (7, 2968650), (9, 2308950), (10, 2078055), (14, 1484325), (15, 1385370), (18, 1154475), (21, 989550), (25, 831222), (27, 769650), (30, 692685), (35, 593730), (42, 494775), (45, 461790), (50, 415611), (54, 384825), (63, 329850), (70, 296865), (75, 277074), (81, 256550), (90, 230895), (105, 197910), (126, 164925), (135, 153930), (150, 138537), (162, 128275), (175, 118746), (189, 109950), (210, 98955), (225, 92358), (270, 76965), (315, 65970), (350, 59373), (378, 54975), (405, 51310), (450, 46179), (525, 39582), (567, 36650), (630, 32985), (675, 30786), (733, 28350), (810, 25655), (945, 21990), (1050, 19791), (1134, 18325), (1350, 15393), (1466, 14175), (1575, 13194), (1890, 10995), (2025, 10262), (2199, 9450), (2835, 7330), (3150, 6597), (3665, 5670), (4050, 5131), (4398, 4725)]