2161082040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{72911}}^1$

素因数の和:72957

約数の個数: 128

約数和(自身を含む): 7349529600

約数和(自身を除く): 5188447560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 988, 1140, 1235, 1482, 1560, 1976, 2280, 2470, 2964, 3705, 4940, 5928, 7410, 9880, 14820, 29640, 72911, 145822, 218733, 291644, 364555, 437466, 583288, 729110, 874932, 947843, 1093665, 1385309, 1458220, 1749864, 1895686, 2187330, 2770618, 2843529, 2916440, 3791372, 4155927, 4374660, 4739215, 5541236, 5687058, 6926545, 7582744, 8311854, 8749320, 9478430, 11082472, 11374116, 13853090, 14217645, 16623708, 18009017, 18956860, 20779635, 22748232, 27706180, 28435290, 33247416, 36018034, 37913720, 41559270, 54027051, 55412360, 56870580, 72036068, 83118540, 90045085, 108054102, 113741160, 144072136, 166237080, 180090170, 216108204, 270135255, 360180340, 432216408, 540270510, 720360680, 1080541020, 2161082040]

約数ペア:

[(1, 2161082040), (2, 1080541020), (3, 720360680), (4, 540270510), (5, 432216408), (6, 360180340), (8, 270135255), (10, 216108204), (12, 180090170), (13, 166237080), (15, 144072136), (19, 113741160), (20, 108054102), (24, 90045085), (26, 83118540), (30, 72036068), (38, 56870580), (39, 55412360), (40, 54027051), (52, 41559270), (57, 37913720), (60, 36018034), (65, 33247416), (76, 28435290), (78, 27706180), (95, 22748232), (104, 20779635), (114, 18956860), (120, 18009017), (130, 16623708), (152, 14217645), (156, 13853090), (190, 11374116), (195, 11082472), (228, 9478430), (247, 8749320), (260, 8311854), (285, 7582744), (312, 6926545), (380, 5687058), (390, 5541236), (456, 4739215), (494, 4374660), (520, 4155927), (570, 3791372), (741, 2916440), (760, 2843529), (780, 2770618), (988, 2187330), (1140, 1895686), (1235, 1749864), (1482, 1458220), (1560, 1385309), (1976, 1093665), (2280, 947843), (2470, 874932), (2964, 729110), (3705, 583288), (4940, 437466), (5928, 364555), (7410, 291644), (9880, 218733), (14820, 145822), (29640, 72911)]