1801389940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:590

約数の個数: 144

約数和(自身を含む): 4560857280

約数和(自身を除く): 2759467340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 107, 140, 164, 196, 205, 214, 245, 287, 410, 419, 428, 490, 535, 574, 749, 820, 838, 980, 1070, 1148, 1435, 1498, 1676, 2009, 2095, 2140, 2870, 2933, 2996, 3745, 4018, 4190, 4387, 5243, 5740, 5866, 7490, 8036, 8380, 8774, 10045, 10486, 11732, 14665, 14980, 17179, 17548, 20090, 20531, 20972, 21935, 26215, 29330, 30709, 34358, 40180, 41062, 43870, 44833, 52430, 58660, 61418, 68716, 82124, 85895, 87740, 89666, 102655, 104860, 120253, 122836, 153545, 171790, 179332, 205310, 214963, 224165, 240506, 307090, 313831, 343580, 410620, 429926, 448330, 481012, 601265, 614180, 627662, 841771, 859852, 896660, 1074815, 1202530, 1255324, 1569155, 1683542, 1838153, 2149630, 2196817, 2405060, 3138310, 3367084, 3676306, 4208855, 4299260, 4393634, 6276620, 7352612, 8417710, 8787268, 9190765, 10984085, 12867071, 16835420, 18381530, 21968170, 25734142, 36763060, 43936340, 51468284, 64335355, 90069497, 128670710, 180138994, 257341420, 360277988, 450347485, 900694970, 1801389940]

約数ペア:

[(1, 1801389940), (2, 900694970), (4, 450347485), (5, 360277988), (7, 257341420), (10, 180138994), (14, 128670710), (20, 90069497), (28, 64335355), (35, 51468284), (41, 43936340), (49, 36763060), (70, 25734142), (82, 21968170), (98, 18381530), (107, 16835420), (140, 12867071), (164, 10984085), (196, 9190765), (205, 8787268), (214, 8417710), (245, 7352612), (287, 6276620), (410, 4393634), (419, 4299260), (428, 4208855), (490, 3676306), (535, 3367084), (574, 3138310), (749, 2405060), (820, 2196817), (838, 2149630), (980, 1838153), (1070, 1683542), (1148, 1569155), (1435, 1255324), (1498, 1202530), (1676, 1074815), (2009, 896660), (2095, 859852), (2140, 841771), (2870, 627662), (2933, 614180), (2996, 601265), (3745, 481012), (4018, 448330), (4190, 429926), (4387, 410620), (5243, 343580), (5740, 313831), (5866, 307090), (7490, 240506), (8036, 224165), (8380, 214963), (8774, 205310), (10045, 179332), (10486, 171790), (11732, 153545), (14665, 122836), (14980, 120253), (17179, 104860), (17548, 102655), (20090, 89666), (20531, 87740), (20972, 85895), (21935, 82124), (26215, 68716), (29330, 61418), (30709, 58660), (34358, 52430), (40180, 44833), (41062, 43870)]