199490940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1901}}^1$

素因数の和:1980

約数の個数: 144

約数和(自身を含む): 672942816

約数和(自身を除く): 473451876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 53, 55, 60, 66, 90, 99, 106, 110, 132, 159, 165, 180, 198, 212, 220, 265, 318, 330, 396, 477, 495, 530, 583, 636, 660, 795, 954, 990, 1060, 1166, 1590, 1749, 1901, 1908, 1980, 2332, 2385, 2915, 3180, 3498, 3802, 4770, 5247, 5703, 5830, 6996, 7604, 8745, 9505, 9540, 10494, 11406, 11660, 17109, 17490, 19010, 20911, 20988, 22812, 26235, 28515, 34218, 34980, 38020, 41822, 52470, 57030, 62733, 68436, 83644, 85545, 100753, 104555, 104940, 114060, 125466, 171090, 188199, 201506, 209110, 250932, 302259, 313665, 342180, 376398, 403012, 418220, 503765, 604518, 627330, 752796, 906777, 940995, 1007530, 1108283, 1209036, 1254660, 1511295, 1813554, 1881990, 2015060, 2216566, 3022590, 3324849, 3627108, 3763980, 4433132, 4533885, 5541415, 6045180, 6649698, 9067770, 9974547, 11082830, 13299396, 16624245, 18135540, 19949094, 22165660, 33248490, 39898188, 49872735, 66496980, 99745470, 199490940]

約数ペア:

[(1, 199490940), (2, 99745470), (3, 66496980), (4, 49872735), (5, 39898188), (6, 33248490), (9, 22165660), (10, 19949094), (11, 18135540), (12, 16624245), (15, 13299396), (18, 11082830), (20, 9974547), (22, 9067770), (30, 6649698), (33, 6045180), (36, 5541415), (44, 4533885), (45, 4433132), (53, 3763980), (55, 3627108), (60, 3324849), (66, 3022590), (90, 2216566), (99, 2015060), (106, 1881990), (110, 1813554), (132, 1511295), (159, 1254660), (165, 1209036), (180, 1108283), (198, 1007530), (212, 940995), (220, 906777), (265, 752796), (318, 627330), (330, 604518), (396, 503765), (477, 418220), (495, 403012), (530, 376398), (583, 342180), (636, 313665), (660, 302259), (795, 250932), (954, 209110), (990, 201506), (1060, 188199), (1166, 171090), (1590, 125466), (1749, 114060), (1901, 104940), (1908, 104555), (1980, 100753), (2332, 85545), (2385, 83644), (2915, 68436), (3180, 62733), (3498, 57030), (3802, 52470), (4770, 41822), (5247, 38020), (5703, 34980), (5830, 34218), (6996, 28515), (7604, 26235), (8745, 22812), (9505, 20988), (9540, 20911), (10494, 19010), (11406, 17490), (11660, 17109)]