20673180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 70053984

約数和(自身を除く): 49380804

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, 197, 198, 212, 220, 265, 318, 330, 394, 396, 477, 495, 530, 583, 591, 636, 660, 788, 795, 954, 985, 990, 1060, 1166, 1182, 1590, 1749, 1773, 1908, 1970, 1980, 2167, 2332, 2364, 2385, 2915, 2955, 3180, 3498, 3546, 3940, 4334, 4770, 5247, 5830, 5910, 6501, 6996, 7092, 8668, 8745, 8865, 9540, 10441, 10494, 10835, 11660, 11820, 13002, 17490, 17730, 19503, 20882, 20988, 21670, 26004, 26235, 31323, 32505, 34980, 35460, 39006, 41764, 43340, 52205, 52470, 62646, 65010, 78012, 93969, 97515, 104410, 104940, 114851, 125292, 130020, 156615, 187938, 195030, 208820, 229702, 313230, 344553, 375876, 390060, 459404, 469845, 574255, 626460, 689106, 939690, 1033659, 1148510, 1378212, 1722765, 1879380, 2067318, 2297020, 3445530, 4134636, 5168295, 6891060, 10336590, 20673180]

約数ペア:

[(1, 20673180), (2, 10336590), (3, 6891060), (4, 5168295), (5, 4134636), (6, 3445530), (9, 2297020), (10, 2067318), (11, 1879380), (12, 1722765), (15, 1378212), (18, 1148510), (20, 1033659), (22, 939690), (30, 689106), (33, 626460), (36, 574255), (44, 469845), (45, 459404), (53, 390060), (55, 375876), (60, 344553), (66, 313230), (90, 229702), (99, 208820), (106, 195030), (110, 187938), (132, 156615), (159, 130020), (165, 125292), (180, 114851), (197, 104940), (198, 104410), (212, 97515), (220, 93969), (265, 78012), (318, 65010), (330, 62646), (394, 52470), (396, 52205), (477, 43340), (495, 41764), (530, 39006), (583, 35460), (591, 34980), (636, 32505), (660, 31323), (788, 26235), (795, 26004), (954, 21670), (985, 20988), (990, 20882), (1060, 19503), (1166, 17730), (1182, 17490), (1590, 13002), (1749, 11820), (1773, 11660), (1908, 10835), (1970, 10494), (1980, 10441), (2167, 9540), (2332, 8865), (2364, 8745), (2385, 8668), (2915, 7092), (2955, 6996), (3180, 6501), (3498, 5910), (3546, 5830), (3940, 5247), (4334, 4770)]