20284000

素因数分解:

$2^5\times 5^3\times {\mathrm{11}}^1\times {\mathrm{461}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 54486432

約数和(自身を除く): 34202432

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 352, 400, 440, 461, 500, 550, 800, 880, 922, 1000, 1100, 1375, 1760, 1844, 2000, 2200, 2305, 2750, 3688, 4000, 4400, 4610, 5071, 5500, 7376, 8800, 9220, 10142, 11000, 11525, 14752, 18440, 20284, 22000, 23050, 25355, 36880, 40568, 44000, 46100, 50710, 57625, 73760, 81136, 92200, 101420, 115250, 126775, 162272, 184400, 202840, 230500, 253550, 368800, 405680, 461000, 507100, 633875, 811360, 922000, 1014200, 1267750, 1844000, 2028400, 2535500, 4056800, 5071000, 10142000, 20284000]

約数ペア:

[(1, 20284000), (2, 10142000), (4, 5071000), (5, 4056800), (8, 2535500), (10, 2028400), (11, 1844000), (16, 1267750), (20, 1014200), (22, 922000), (25, 811360), (32, 633875), (40, 507100), (44, 461000), (50, 405680), (55, 368800), (80, 253550), (88, 230500), (100, 202840), (110, 184400), (125, 162272), (160, 126775), (176, 115250), (200, 101420), (220, 92200), (250, 81136), (275, 73760), (352, 57625), (400, 50710), (440, 46100), (461, 44000), (500, 40568), (550, 36880), (800, 25355), (880, 23050), (922, 22000), (1000, 20284), (1100, 18440), (1375, 14752), (1760, 11525), (1844, 11000), (2000, 10142), (2200, 9220), (2305, 8800), (2750, 7376), (3688, 5500), (4000, 5071), (4400, 4610)]