20955888

素因数分解:

$2^4\times 3^3\times {\mathrm{179}}^1\times {\mathrm{271}}^1$

素因数の和:467

約数の個数: 80

約数和(自身を含む): 60710400

約数和(自身を除く): 39754512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 179, 216, 271, 358, 432, 537, 542, 716, 813, 1074, 1084, 1432, 1611, 1626, 2148, 2168, 2439, 2864, 3222, 3252, 4296, 4336, 4833, 4878, 6444, 6504, 7317, 8592, 9666, 9756, 12888, 13008, 14634, 19332, 19512, 25776, 29268, 38664, 39024, 48509, 58536, 77328, 97018, 117072, 145527, 194036, 291054, 388072, 436581, 582108, 776144, 873162, 1164216, 1309743, 1746324, 2328432, 2619486, 3492648, 5238972, 6985296, 10477944, 20955888]

約数ペア:

[(1, 20955888), (2, 10477944), (3, 6985296), (4, 5238972), (6, 3492648), (8, 2619486), (9, 2328432), (12, 1746324), (16, 1309743), (18, 1164216), (24, 873162), (27, 776144), (36, 582108), (48, 436581), (54, 388072), (72, 291054), (108, 194036), (144, 145527), (179, 117072), (216, 97018), (271, 77328), (358, 58536), (432, 48509), (537, 39024), (542, 38664), (716, 29268), (813, 25776), (1074, 19512), (1084, 19332), (1432, 14634), (1611, 13008), (1626, 12888), (2148, 9756), (2168, 9666), (2439, 8592), (2864, 7317), (3222, 6504), (3252, 6444), (4296, 4878), (4336, 4833)]