20187090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1$

素因数の和:1005

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 46997550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 971, 990, 1155, 1386, 1485, 1890, 1942, 2079, 2310, 2913, 2970, 3465, 4158, 4855, 5826, 6797, 6930, 8739, 9710, 10395, 10681, 13594, 14565, 17478, 20391, 20790, 21362, 26217, 29130, 32043, 33985, 40782, 43695, 52434, 53405, 61173, 64086, 67970, 74767, 87390, 96129, 101955, 106810, 122346, 131085, 149534, 160215, 183519, 192258, 203910, 224301, 262170, 288387, 305865, 320430, 367038, 373835, 448602, 480645, 576774, 611730, 672903, 747670, 917595, 961290, 1121505, 1345806, 1441935, 1835190, 2018709, 2243010, 2883870, 3364515, 4037418, 6729030, 10093545, 20187090]

約数ペア:

[(1, 20187090), (2, 10093545), (3, 6729030), (5, 4037418), (6, 3364515), (7, 2883870), (9, 2243010), (10, 2018709), (11, 1835190), (14, 1441935), (15, 1345806), (18, 1121505), (21, 961290), (22, 917595), (27, 747670), (30, 672903), (33, 611730), (35, 576774), (42, 480645), (45, 448602), (54, 373835), (55, 367038), (63, 320430), (66, 305865), (70, 288387), (77, 262170), (90, 224301), (99, 203910), (105, 192258), (110, 183519), (126, 160215), (135, 149534), (154, 131085), (165, 122346), (189, 106810), (198, 101955), (210, 96129), (231, 87390), (270, 74767), (297, 67970), (315, 64086), (330, 61173), (378, 53405), (385, 52434), (462, 43695), (495, 40782), (594, 33985), (630, 32043), (693, 29130), (770, 26217), (945, 21362), (971, 20790), (990, 20391), (1155, 17478), (1386, 14565), (1485, 13594), (1890, 10681), (1942, 10395), (2079, 9710), (2310, 8739), (2913, 6930), (2970, 6797), (3465, 5826), (4158, 4855)]