161219940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:354

約数の個数: 192

約数和(自身を含む): 551577600

約数和(自身を除く): 390357660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 89, 95, 105, 114, 133, 140, 178, 190, 210, 227, 228, 266, 267, 285, 356, 380, 399, 420, 445, 454, 532, 534, 570, 623, 665, 681, 798, 890, 908, 1068, 1135, 1140, 1246, 1330, 1335, 1362, 1589, 1596, 1691, 1780, 1869, 1995, 2270, 2492, 2660, 2670, 2724, 3115, 3178, 3382, 3405, 3738, 3990, 4313, 4540, 4767, 5073, 5340, 6230, 6356, 6764, 6810, 7476, 7945, 7980, 8455, 8626, 9345, 9534, 10146, 11837, 12460, 12939, 13620, 15890, 16910, 17252, 18690, 19068, 20203, 20292, 21565, 23674, 23835, 25365, 25878, 30191, 31780, 33820, 35511, 37380, 40406, 43130, 47348, 47670, 50730, 51756, 59185, 60382, 60609, 64695, 71022, 80812, 86260, 90573, 95340, 101015, 101460, 118370, 120764, 121218, 129390, 141421, 142044, 150955, 177555, 181146, 202030, 236740, 242436, 258780, 282842, 301910, 303045, 355110, 362292, 383857, 404060, 424263, 452865, 565684, 603820, 606090, 707105, 710220, 767714, 848526, 905730, 1151571, 1212180, 1414210, 1535428, 1697052, 1811460, 1919285, 2121315, 2303142, 2686999, 2828420, 3838570, 4242630, 4606284, 5373998, 5757855, 7677140, 8060997, 8485260, 10747996, 11515710, 13434995, 16121994, 23031420, 26869990, 32243988, 40304985, 53739980, 80609970, 161219940]

約数ペア:

[(1, 161219940), (2, 80609970), (3, 53739980), (4, 40304985), (5, 32243988), (6, 26869990), (7, 23031420), (10, 16121994), (12, 13434995), (14, 11515710), (15, 10747996), (19, 8485260), (20, 8060997), (21, 7677140), (28, 5757855), (30, 5373998), (35, 4606284), (38, 4242630), (42, 3838570), (57, 2828420), (60, 2686999), (70, 2303142), (76, 2121315), (84, 1919285), (89, 1811460), (95, 1697052), (105, 1535428), (114, 1414210), (133, 1212180), (140, 1151571), (178, 905730), (190, 848526), (210, 767714), (227, 710220), (228, 707105), (266, 606090), (267, 603820), (285, 565684), (356, 452865), (380, 424263), (399, 404060), (420, 383857), (445, 362292), (454, 355110), (532, 303045), (534, 301910), (570, 282842), (623, 258780), (665, 242436), (681, 236740), (798, 202030), (890, 181146), (908, 177555), (1068, 150955), (1135, 142044), (1140, 141421), (1246, 129390), (1330, 121218), (1335, 120764), (1362, 118370), (1589, 101460), (1596, 101015), (1691, 95340), (1780, 90573), (1869, 86260), (1995, 80812), (2270, 71022), (2492, 64695), (2660, 60609), (2670, 60382), (2724, 59185), (3115, 51756), (3178, 50730), (3382, 47670), (3405, 47348), (3738, 43130), (3990, 40406), (4313, 37380), (4540, 35511), (4767, 33820), (5073, 31780), (5340, 30191), (6230, 25878), (6356, 25365), (6764, 23835), (6810, 23674), (7476, 21565), (7945, 20292), (7980, 20203), (8455, 19068), (8626, 18690), (9345, 17252), (9534, 16910), (10146, 15890), (11837, 13620), (12460, 12939)]