20449920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10651}}^1$

素因数の和:10673

約数の個数: 64

約数和(自身を含む): 65190240

約数和(自身を除く): 44740320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10651, 21302, 31953, 42604, 53255, 63906, 85208, 106510, 127812, 159765, 170416, 213020, 255624, 319530, 340832, 426040, 511248, 639060, 681664, 852080, 1022496, 1278120, 1363328, 1704160, 2044992, 2556240, 3408320, 4089984, 5112480, 6816640, 10224960, 20449920]

約数ペア:

[(1, 20449920), (2, 10224960), (3, 6816640), (4, 5112480), (5, 4089984), (6, 3408320), (8, 2556240), (10, 2044992), (12, 1704160), (15, 1363328), (16, 1278120), (20, 1022496), (24, 852080), (30, 681664), (32, 639060), (40, 511248), (48, 426040), (60, 340832), (64, 319530), (80, 255624), (96, 213020), (120, 170416), (128, 159765), (160, 127812), (192, 106510), (240, 85208), (320, 63906), (384, 53255), (480, 42604), (640, 31953), (960, 21302), (1920, 10651)]