20477040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2081}}^1$

素因数の和:2138

約数の個数: 80

約数和(自身を含む): 65058336

約数和(自身を除く): 44581296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2081, 2460, 3280, 4162, 4920, 6243, 8324, 9840, 10405, 12486, 16648, 20810, 24972, 31215, 33296, 41620, 49944, 62430, 83240, 85321, 99888, 124860, 166480, 170642, 249720, 255963, 341284, 426605, 499440, 511926, 682568, 853210, 1023852, 1279815, 1365136, 1706420, 2047704, 2559630, 3412840, 4095408, 5119260, 6825680, 10238520, 20477040]

約数ペア:

[(1, 20477040), (2, 10238520), (3, 6825680), (4, 5119260), (5, 4095408), (6, 3412840), (8, 2559630), (10, 2047704), (12, 1706420), (15, 1365136), (16, 1279815), (20, 1023852), (24, 853210), (30, 682568), (40, 511926), (41, 499440), (48, 426605), (60, 341284), (80, 255963), (82, 249720), (120, 170642), (123, 166480), (164, 124860), (205, 99888), (240, 85321), (246, 83240), (328, 62430), (410, 49944), (492, 41620), (615, 33296), (656, 31215), (820, 24972), (984, 20810), (1230, 16648), (1640, 12486), (1968, 10405), (2081, 9840), (2460, 8324), (3280, 6243), (4162, 4920)]