19701990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2843}}^1$

素因数の和:2874

約数の個数: 96

約数和(自身を含む): 63887616

約数和(自身を除く): 44185626

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 154, 165, 198, 210, 231, 315, 330, 385, 462, 495, 630, 693, 770, 990, 1155, 1386, 2310, 2843, 3465, 5686, 6930, 8529, 14215, 17058, 19901, 25587, 28430, 31273, 39802, 42645, 51174, 59703, 62546, 85290, 93819, 99505, 119406, 127935, 156365, 179109, 187638, 199010, 218911, 255870, 281457, 298515, 312730, 358218, 437822, 469095, 562914, 597030, 656733, 895545, 938190, 1094555, 1313466, 1407285, 1791090, 1970199, 2189110, 2814570, 3283665, 3940398, 6567330, 9850995, 19701990]

約数ペア:

[(1, 19701990), (2, 9850995), (3, 6567330), (5, 3940398), (6, 3283665), (7, 2814570), (9, 2189110), (10, 1970199), (11, 1791090), (14, 1407285), (15, 1313466), (18, 1094555), (21, 938190), (22, 895545), (30, 656733), (33, 597030), (35, 562914), (42, 469095), (45, 437822), (55, 358218), (63, 312730), (66, 298515), (70, 281457), (77, 255870), (90, 218911), (99, 199010), (105, 187638), (110, 179109), (126, 156365), (154, 127935), (165, 119406), (198, 99505), (210, 93819), (231, 85290), (315, 62546), (330, 59703), (385, 51174), (462, 42645), (495, 39802), (630, 31273), (693, 28430), (770, 25587), (990, 19901), (1155, 17058), (1386, 14215), (2310, 8529), (2843, 6930), (3465, 5686)]