20954340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:602

約数の個数: 144

約数和(自身を含む): 73120320

約数和(自身を除く): 52165980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 557, 570, 627, 660, 684, 836, 855, 990, 1045, 1114, 1140, 1254, 1671, 1710, 1881, 1980, 2090, 2228, 2508, 2785, 3135, 3342, 3420, 3762, 4180, 5013, 5570, 6127, 6270, 6684, 7524, 8355, 9405, 10026, 10583, 11140, 12254, 12540, 16710, 18381, 18810, 20052, 21166, 24508, 25065, 30635, 31749, 33420, 36762, 37620, 42332, 50130, 52915, 55143, 61270, 63498, 73524, 91905, 95247, 100260, 105830, 110286, 116413, 122540, 126996, 158745, 183810, 190494, 211660, 220572, 232826, 275715, 317490, 349239, 367620, 380988, 465652, 476235, 551430, 582065, 634980, 698478, 952470, 1047717, 1102860, 1164130, 1396956, 1746195, 1904940, 2095434, 2328260, 3492390, 4190868, 5238585, 6984780, 10477170, 20954340]

約数ペア:

[(1, 20954340), (2, 10477170), (3, 6984780), (4, 5238585), (5, 4190868), (6, 3492390), (9, 2328260), (10, 2095434), (11, 1904940), (12, 1746195), (15, 1396956), (18, 1164130), (19, 1102860), (20, 1047717), (22, 952470), (30, 698478), (33, 634980), (36, 582065), (38, 551430), (44, 476235), (45, 465652), (55, 380988), (57, 367620), (60, 349239), (66, 317490), (76, 275715), (90, 232826), (95, 220572), (99, 211660), (110, 190494), (114, 183810), (132, 158745), (165, 126996), (171, 122540), (180, 116413), (190, 110286), (198, 105830), (209, 100260), (220, 95247), (228, 91905), (285, 73524), (330, 63498), (342, 61270), (380, 55143), (396, 52915), (418, 50130), (495, 42332), (557, 37620), (570, 36762), (627, 33420), (660, 31749), (684, 30635), (836, 25065), (855, 24508), (990, 21166), (1045, 20052), (1114, 18810), (1140, 18381), (1254, 16710), (1671, 12540), (1710, 12254), (1881, 11140), (1980, 10583), (2090, 10026), (2228, 9405), (2508, 8355), (2785, 7524), (3135, 6684), (3342, 6270), (3420, 6127), (3762, 5570), (4180, 5013)]