661270960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:491

約数の個数: 160

約数和(自身を含む): 1826883072

約数和(自身を除く): 1165612112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 83, 112, 140, 164, 166, 205, 280, 287, 328, 332, 347, 410, 415, 560, 574, 581, 656, 664, 694, 820, 830, 1148, 1162, 1328, 1388, 1435, 1640, 1660, 1735, 2296, 2324, 2429, 2776, 2870, 2905, 3280, 3320, 3403, 3470, 4592, 4648, 4858, 5552, 5740, 5810, 6640, 6806, 6940, 9296, 9716, 11480, 11620, 12145, 13612, 13880, 14227, 17015, 19432, 22960, 23240, 23821, 24290, 27224, 27760, 28454, 28801, 34030, 38864, 46480, 47642, 48580, 54448, 56908, 57602, 68060, 71135, 95284, 97160, 99589, 113816, 115204, 119105, 136120, 142270, 144005, 190568, 194320, 199178, 201607, 227632, 230408, 238210, 272240, 284540, 288010, 381136, 398356, 403214, 460816, 476420, 497945, 569080, 576020, 796712, 806428, 952840, 995890, 1008035, 1138160, 1152040, 1180841, 1593424, 1612856, 1905680, 1991780, 2016070, 2304080, 2361682, 3225712, 3983560, 4032140, 4723364, 5904205, 7967120, 8064280, 8265887, 9446728, 11808410, 16128560, 16531774, 18893456, 23616820, 33063548, 41329435, 47233640, 66127096, 82658870, 94467280, 132254192, 165317740, 330635480, 661270960]

約数ペア:

[(1, 661270960), (2, 330635480), (4, 165317740), (5, 132254192), (7, 94467280), (8, 82658870), (10, 66127096), (14, 47233640), (16, 41329435), (20, 33063548), (28, 23616820), (35, 18893456), (40, 16531774), (41, 16128560), (56, 11808410), (70, 9446728), (80, 8265887), (82, 8064280), (83, 7967120), (112, 5904205), (140, 4723364), (164, 4032140), (166, 3983560), (205, 3225712), (280, 2361682), (287, 2304080), (328, 2016070), (332, 1991780), (347, 1905680), (410, 1612856), (415, 1593424), (560, 1180841), (574, 1152040), (581, 1138160), (656, 1008035), (664, 995890), (694, 952840), (820, 806428), (830, 796712), (1148, 576020), (1162, 569080), (1328, 497945), (1388, 476420), (1435, 460816), (1640, 403214), (1660, 398356), (1735, 381136), (2296, 288010), (2324, 284540), (2429, 272240), (2776, 238210), (2870, 230408), (2905, 227632), (3280, 201607), (3320, 199178), (3403, 194320), (3470, 190568), (4592, 144005), (4648, 142270), (4858, 136120), (5552, 119105), (5740, 115204), (5810, 113816), (6640, 99589), (6806, 97160), (6940, 95284), (9296, 71135), (9716, 68060), (11480, 57602), (11620, 56908), (12145, 54448), (13612, 48580), (13880, 47642), (14227, 46480), (17015, 38864), (19432, 34030), (22960, 28801), (23240, 28454), (23821, 27760), (24290, 27224)]