20256300

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 108

約数和(自身を含む): 64589616

約数和(自身を除く): 44333316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 71, 75, 90, 100, 142, 150, 180, 213, 225, 284, 300, 317, 355, 426, 450, 634, 639, 710, 852, 900, 951, 1065, 1268, 1278, 1420, 1585, 1775, 1902, 2130, 2556, 2853, 3170, 3195, 3550, 3804, 4260, 4755, 5325, 5706, 6340, 6390, 7100, 7925, 9510, 10650, 11412, 12780, 14265, 15850, 15975, 19020, 21300, 22507, 23775, 28530, 31700, 31950, 45014, 47550, 57060, 63900, 67521, 71325, 90028, 95100, 112535, 135042, 142650, 202563, 225070, 270084, 285300, 337605, 405126, 450140, 562675, 675210, 810252, 1012815, 1125350, 1350420, 1688025, 2025630, 2250700, 3376050, 4051260, 5064075, 6752100, 10128150, 20256300]

約数ペア:

[(1, 20256300), (2, 10128150), (3, 6752100), (4, 5064075), (5, 4051260), (6, 3376050), (9, 2250700), (10, 2025630), (12, 1688025), (15, 1350420), (18, 1125350), (20, 1012815), (25, 810252), (30, 675210), (36, 562675), (45, 450140), (50, 405126), (60, 337605), (71, 285300), (75, 270084), (90, 225070), (100, 202563), (142, 142650), (150, 135042), (180, 112535), (213, 95100), (225, 90028), (284, 71325), (300, 67521), (317, 63900), (355, 57060), (426, 47550), (450, 45014), (634, 31950), (639, 31700), (710, 28530), (852, 23775), (900, 22507), (951, 21300), (1065, 19020), (1268, 15975), (1278, 15850), (1420, 14265), (1585, 12780), (1775, 11412), (1902, 10650), (2130, 9510), (2556, 7925), (2853, 7100), (3170, 6390), (3195, 6340), (3550, 5706), (3804, 5325), (4260, 4755)]