20506560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:582

約数の個数: 112

約数和(自身を含む): 66824352

約数和(自身を除く): 46317792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 160, 164, 192, 205, 240, 246, 320, 328, 410, 480, 492, 521, 615, 656, 820, 960, 984, 1042, 1230, 1312, 1563, 1640, 1968, 2084, 2460, 2605, 2624, 3126, 3280, 3936, 4168, 4920, 5210, 6252, 6560, 7815, 7872, 8336, 9840, 10420, 12504, 13120, 15630, 16672, 19680, 20840, 21361, 25008, 31260, 33344, 39360, 41680, 42722, 50016, 62520, 64083, 83360, 85444, 100032, 106805, 125040, 128166, 166720, 170888, 213610, 250080, 256332, 320415, 341776, 427220, 500160, 512664, 640830, 683552, 854440, 1025328, 1281660, 1367104, 1708880, 2050656, 2563320, 3417760, 4101312, 5126640, 6835520, 10253280, 20506560]

約数ペア:

[(1, 20506560), (2, 10253280), (3, 6835520), (4, 5126640), (5, 4101312), (6, 3417760), (8, 2563320), (10, 2050656), (12, 1708880), (15, 1367104), (16, 1281660), (20, 1025328), (24, 854440), (30, 683552), (32, 640830), (40, 512664), (41, 500160), (48, 427220), (60, 341776), (64, 320415), (80, 256332), (82, 250080), (96, 213610), (120, 170888), (123, 166720), (160, 128166), (164, 125040), (192, 106805), (205, 100032), (240, 85444), (246, 83360), (320, 64083), (328, 62520), (410, 50016), (480, 42722), (492, 41680), (521, 39360), (615, 33344), (656, 31260), (820, 25008), (960, 21361), (984, 20840), (1042, 19680), (1230, 16672), (1312, 15630), (1563, 13120), (1640, 12504), (1968, 10420), (2084, 9840), (2460, 8336), (2605, 7872), (2624, 7815), (3126, 6560), (3280, 6252), (3936, 5210), (4168, 4920)]