187921980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 590728320

約数和(自身を除く): 402806340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 97, 141, 180, 188, 194, 229, 235, 282, 291, 388, 423, 458, 470, 485, 564, 582, 687, 705, 846, 873, 916, 940, 970, 1145, 1164, 1374, 1410, 1455, 1692, 1746, 1940, 2061, 2115, 2290, 2748, 2820, 2910, 3435, 3492, 4122, 4230, 4365, 4559, 4580, 5820, 6870, 8244, 8460, 8730, 9118, 10305, 10763, 13677, 13740, 17460, 18236, 20610, 21526, 22213, 22795, 27354, 32289, 41031, 41220, 43052, 44426, 45590, 53815, 54708, 64578, 66639, 68385, 82062, 88852, 91180, 96867, 107630, 111065, 129156, 133278, 136770, 161445, 164124, 193734, 199917, 205155, 215260, 222130, 266556, 273540, 322890, 333195, 387468, 399834, 410310, 444260, 484335, 645780, 666390, 799668, 820620, 968670, 999585, 1044011, 1332780, 1937340, 1999170, 2088022, 3132033, 3998340, 4176044, 5220055, 6264066, 9396099, 10440110, 12528132, 15660165, 18792198, 20880220, 31320330, 37584396, 46980495, 62640660, 93960990, 187921980]

約数ペア:

[(1, 187921980), (2, 93960990), (3, 62640660), (4, 46980495), (5, 37584396), (6, 31320330), (9, 20880220), (10, 18792198), (12, 15660165), (15, 12528132), (18, 10440110), (20, 9396099), (30, 6264066), (36, 5220055), (45, 4176044), (47, 3998340), (60, 3132033), (90, 2088022), (94, 1999170), (97, 1937340), (141, 1332780), (180, 1044011), (188, 999585), (194, 968670), (229, 820620), (235, 799668), (282, 666390), (291, 645780), (388, 484335), (423, 444260), (458, 410310), (470, 399834), (485, 387468), (564, 333195), (582, 322890), (687, 273540), (705, 266556), (846, 222130), (873, 215260), (916, 205155), (940, 199917), (970, 193734), (1145, 164124), (1164, 161445), (1374, 136770), (1410, 133278), (1455, 129156), (1692, 111065), (1746, 107630), (1940, 96867), (2061, 91180), (2115, 88852), (2290, 82062), (2748, 68385), (2820, 66639), (2910, 64578), (3435, 54708), (3492, 53815), (4122, 45590), (4230, 44426), (4365, 43052), (4559, 41220), (4580, 41031), (5820, 32289), (6870, 27354), (8244, 22795), (8460, 22213), (8730, 21526), (9118, 20610), (10305, 18236), (10763, 17460), (13677, 13740)]