20965440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21839}}^1$

素因数の和:21859

約数の個数: 56

約数和(自身を含む): 66568320

約数和(自身を除く): 45602880

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, 160, 192, 240, 320, 480, 960, 21839, 43678, 65517, 87356, 109195, 131034, 174712, 218390, 262068, 327585, 349424, 436780, 524136, 655170, 698848, 873560, 1048272, 1310340, 1397696, 1747120, 2096544, 2620680, 3494240, 4193088, 5241360, 6988480, 10482720, 20965440]

約数ペア:

[(1, 20965440), (2, 10482720), (3, 6988480), (4, 5241360), (5, 4193088), (6, 3494240), (8, 2620680), (10, 2096544), (12, 1747120), (15, 1397696), (16, 1310340), (20, 1048272), (24, 873560), (30, 698848), (32, 655170), (40, 524136), (48, 436780), (60, 349424), (64, 327585), (80, 262068), (96, 218390), (120, 174712), (160, 131034), (192, 109195), (240, 87356), (320, 65517), (480, 43678), (960, 21839)]