81451480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9743}}^1$

素因数の和:9784

約数の個数: 64

約数和(自身を含む): 210470400

約数和(自身を除く): 129018920

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 9743, 19486, 38972, 48715, 77944, 97430, 107173, 185117, 194860, 214346, 370234, 389720, 428692, 535865, 740468, 857384, 925585, 1071730, 1480936, 1851170, 2036287, 2143460, 3702340, 4072574, 4286920, 7404680, 8145148, 10181435, 16290296, 20362870, 40725740, 81451480]

約数ペア:

[(1, 81451480), (2, 40725740), (4, 20362870), (5, 16290296), (8, 10181435), (10, 8145148), (11, 7404680), (19, 4286920), (20, 4072574), (22, 3702340), (38, 2143460), (40, 2036287), (44, 1851170), (55, 1480936), (76, 1071730), (88, 925585), (95, 857384), (110, 740468), (152, 535865), (190, 428692), (209, 389720), (220, 370234), (380, 214346), (418, 194860), (440, 185117), (760, 107173), (836, 97430), (1045, 77944), (1672, 48715), (2090, 38972), (4180, 19486), (8360, 9743)]