205478460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:844

約数の個数: 144

約数和(自身を含む): 685312992

約数和(自身を除く): 479834532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 157, 165, 180, 198, 220, 314, 330, 396, 471, 495, 628, 660, 661, 785, 942, 990, 1322, 1413, 1570, 1727, 1884, 1980, 1983, 2355, 2644, 2826, 3140, 3305, 3454, 3966, 4710, 5181, 5652, 5949, 6610, 6908, 7065, 7271, 7932, 8635, 9420, 9915, 10362, 11898, 13220, 14130, 14542, 15543, 17270, 19830, 20724, 21813, 23796, 25905, 28260, 29084, 29745, 31086, 34540, 36355, 39660, 43626, 51810, 59490, 62172, 65439, 72710, 77715, 87252, 103620, 103777, 109065, 118980, 130878, 145420, 155430, 207554, 218130, 261756, 310860, 311331, 327195, 415108, 436260, 518885, 622662, 654390, 933993, 1037770, 1141547, 1245324, 1308780, 1556655, 1867986, 2075540, 2283094, 3113310, 3424641, 3735972, 4566188, 4669965, 5707735, 6226620, 6849282, 9339930, 10273923, 11415470, 13698564, 17123205, 18679860, 20547846, 22830940, 34246410, 41095692, 51369615, 68492820, 102739230, 205478460]

約数ペア:

[(1, 205478460), (2, 102739230), (3, 68492820), (4, 51369615), (5, 41095692), (6, 34246410), (9, 22830940), (10, 20547846), (11, 18679860), (12, 17123205), (15, 13698564), (18, 11415470), (20, 10273923), (22, 9339930), (30, 6849282), (33, 6226620), (36, 5707735), (44, 4669965), (45, 4566188), (55, 3735972), (60, 3424641), (66, 3113310), (90, 2283094), (99, 2075540), (110, 1867986), (132, 1556655), (157, 1308780), (165, 1245324), (180, 1141547), (198, 1037770), (220, 933993), (314, 654390), (330, 622662), (396, 518885), (471, 436260), (495, 415108), (628, 327195), (660, 311331), (661, 310860), (785, 261756), (942, 218130), (990, 207554), (1322, 155430), (1413, 145420), (1570, 130878), (1727, 118980), (1884, 109065), (1980, 103777), (1983, 103620), (2355, 87252), (2644, 77715), (2826, 72710), (3140, 65439), (3305, 62172), (3454, 59490), (3966, 51810), (4710, 43626), (5181, 39660), (5652, 36355), (5949, 34540), (6610, 31086), (6908, 29745), (7065, 29084), (7271, 28260), (7932, 25905), (8635, 23796), (9420, 21813), (9915, 20724), (10362, 19830), (11898, 17270), (13220, 15543), (14130, 14542)]