81951912

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 240

約数和(自身を含む): 279328500

約数和(自身を除く): 197376588

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 29, 36, 42, 49, 54, 56, 58, 63, 72, 81, 84, 87, 89, 98, 108, 116, 126, 147, 162, 168, 174, 178, 189, 196, 203, 216, 232, 252, 261, 267, 294, 324, 348, 356, 378, 392, 406, 441, 504, 522, 534, 567, 588, 609, 623, 648, 696, 712, 756, 783, 801, 812, 882, 1044, 1068, 1134, 1176, 1218, 1246, 1323, 1421, 1512, 1566, 1602, 1624, 1764, 1827, 1869, 2088, 2136, 2268, 2349, 2403, 2436, 2492, 2581, 2646, 2842, 3132, 3204, 3528, 3654, 3738, 3969, 4263, 4361, 4536, 4698, 4806, 4872, 4984, 5162, 5292, 5481, 5607, 5684, 6264, 6408, 7209, 7308, 7476, 7743, 7938, 8526, 8722, 9396, 9612, 10324, 10584, 10962, 11214, 11368, 12789, 13083, 14418, 14616, 14952, 15486, 15876, 16443, 16821, 17052, 17444, 18067, 18792, 19224, 20648, 21924, 22428, 23229, 25578, 26166, 28836, 30972, 31752, 32886, 33642, 34104, 34888, 36134, 38367, 39249, 43848, 44856, 46458, 50463, 51156, 52332, 54201, 57672, 61944, 65772, 67284, 69687, 72268, 76734, 78498, 92916, 100926, 102312, 104664, 108402, 115101, 117747, 126469, 131544, 134568, 139374, 144536, 153468, 156996, 162603, 185832, 201852, 209061, 216804, 230202, 235494, 252938, 278748, 306936, 313992, 325206, 353241, 379407, 403704, 418122, 433608, 460404, 470988, 487809, 505876, 557496, 650412, 706482, 758814, 836244, 920808, 941976, 975618, 1011752, 1138221, 1300824, 1412964, 1463427, 1517628, 1672488, 1951236, 2276442, 2825928, 2926854, 3035256, 3414663, 3902472, 4552884, 5853708, 6829326, 9105768, 10243989, 11707416, 13658652, 20487978, 27317304, 40975956, 81951912]

約数ペア:

[(1, 81951912), (2, 40975956), (3, 27317304), (4, 20487978), (6, 13658652), (7, 11707416), (8, 10243989), (9, 9105768), (12, 6829326), (14, 5853708), (18, 4552884), (21, 3902472), (24, 3414663), (27, 3035256), (28, 2926854), (29, 2825928), (36, 2276442), (42, 1951236), (49, 1672488), (54, 1517628), (56, 1463427), (58, 1412964), (63, 1300824), (72, 1138221), (81, 1011752), (84, 975618), (87, 941976), (89, 920808), (98, 836244), (108, 758814), (116, 706482), (126, 650412), (147, 557496), (162, 505876), (168, 487809), (174, 470988), (178, 460404), (189, 433608), (196, 418122), (203, 403704), (216, 379407), (232, 353241), (252, 325206), (261, 313992), (267, 306936), (294, 278748), (324, 252938), (348, 235494), (356, 230202), (378, 216804), (392, 209061), (406, 201852), (441, 185832), (504, 162603), (522, 156996), (534, 153468), (567, 144536), (588, 139374), (609, 134568), (623, 131544), (648, 126469), (696, 117747), (712, 115101), (756, 108402), (783, 104664), (801, 102312), (812, 100926), (882, 92916), (1044, 78498), (1068, 76734), (1134, 72268), (1176, 69687), (1218, 67284), (1246, 65772), (1323, 61944), (1421, 57672), (1512, 54201), (1566, 52332), (1602, 51156), (1624, 50463), (1764, 46458), (1827, 44856), (1869, 43848), (2088, 39249), (2136, 38367), (2268, 36134), (2349, 34888), (2403, 34104), (2436, 33642), (2492, 32886), (2581, 31752), (2646, 30972), (2842, 28836), (3132, 26166), (3204, 25578), (3528, 23229), (3654, 22428), (3738, 21924), (3969, 20648), (4263, 19224), (4361, 18792), (4536, 18067), (4698, 17444), (4806, 17052), (4872, 16821), (4984, 16443), (5162, 15876), (5292, 15486), (5481, 14952), (5607, 14616), (5684, 14418), (6264, 13083), (6408, 12789), (7209, 11368), (7308, 11214), (7476, 10962), (7743, 10584), (7938, 10324), (8526, 9612), (8722, 9396)]