20529960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 68290560

約数和(自身を除く): 47760600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 103, 110, 120, 132, 151, 165, 206, 220, 264, 302, 309, 330, 412, 440, 453, 515, 604, 618, 660, 755, 824, 906, 1030, 1133, 1208, 1236, 1320, 1510, 1545, 1661, 1812, 2060, 2265, 2266, 2472, 3020, 3090, 3322, 3399, 3624, 4120, 4530, 4532, 4983, 5665, 6040, 6180, 6644, 6798, 8305, 9060, 9064, 9966, 11330, 12360, 13288, 13596, 15553, 16610, 16995, 18120, 19932, 22660, 24915, 27192, 31106, 33220, 33990, 39864, 45320, 46659, 49830, 62212, 66440, 67980, 77765, 93318, 99660, 124424, 135960, 155530, 171083, 186636, 199320, 233295, 311060, 342166, 373272, 466590, 513249, 622120, 684332, 855415, 933180, 1026498, 1368664, 1710830, 1866360, 2052996, 2566245, 3421660, 4105992, 5132490, 6843320, 10264980, 20529960]

約数ペア:

[(1, 20529960), (2, 10264980), (3, 6843320), (4, 5132490), (5, 4105992), (6, 3421660), (8, 2566245), (10, 2052996), (11, 1866360), (12, 1710830), (15, 1368664), (20, 1026498), (22, 933180), (24, 855415), (30, 684332), (33, 622120), (40, 513249), (44, 466590), (55, 373272), (60, 342166), (66, 311060), (88, 233295), (103, 199320), (110, 186636), (120, 171083), (132, 155530), (151, 135960), (165, 124424), (206, 99660), (220, 93318), (264, 77765), (302, 67980), (309, 66440), (330, 62212), (412, 49830), (440, 46659), (453, 45320), (515, 39864), (604, 33990), (618, 33220), (660, 31106), (755, 27192), (824, 24915), (906, 22660), (1030, 19932), (1133, 18120), (1208, 16995), (1236, 16610), (1320, 15553), (1510, 13596), (1545, 13288), (1661, 12360), (1812, 11330), (2060, 9966), (2265, 9064), (2266, 9060), (2472, 8305), (3020, 6798), (3090, 6644), (3322, 6180), (3399, 6040), (3624, 5665), (4120, 4983), (4530, 4532)]