20023520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:424

約数の個数: 96

約数和(自身を含む): 53415936

約数和(自身を除く): 33392416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 367, 440, 496, 620, 682, 734, 880, 992, 1240, 1364, 1468, 1705, 1760, 1835, 2480, 2728, 2936, 3410, 3670, 4037, 4960, 5456, 5872, 6820, 7340, 8074, 10912, 11377, 11744, 13640, 14680, 16148, 20185, 22754, 27280, 29360, 32296, 40370, 45508, 54560, 56885, 58720, 64592, 80740, 91016, 113770, 125147, 129184, 161480, 182032, 227540, 250294, 322960, 364064, 455080, 500588, 625735, 645920, 910160, 1001176, 1251470, 1820320, 2002352, 2502940, 4004704, 5005880, 10011760, 20023520]

約数ペア:

[(1, 20023520), (2, 10011760), (4, 5005880), (5, 4004704), (8, 2502940), (10, 2002352), (11, 1820320), (16, 1251470), (20, 1001176), (22, 910160), (31, 645920), (32, 625735), (40, 500588), (44, 455080), (55, 364064), (62, 322960), (80, 250294), (88, 227540), (110, 182032), (124, 161480), (155, 129184), (160, 125147), (176, 113770), (220, 91016), (248, 80740), (310, 64592), (341, 58720), (352, 56885), (367, 54560), (440, 45508), (496, 40370), (620, 32296), (682, 29360), (734, 27280), (880, 22754), (992, 20185), (1240, 16148), (1364, 14680), (1468, 13640), (1705, 11744), (1760, 11377), (1835, 10912), (2480, 8074), (2728, 7340), (2936, 6820), (3410, 5872), (3670, 5456), (4037, 4960)]