261239580

素因数分解:

$2^2\times 3^5\times 5^1\times 7^2\times {\mathrm{1097}}^1$

素因数の和:1135

約数の個数: 216

約数和(自身を含む): 956814768

約数和(自身を除く): 695575188

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 243, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 486, 490, 540, 567, 588, 630, 735, 756, 810, 882, 945, 972, 980, 1097, 1134, 1215, 1260, 1323, 1470, 1620, 1701, 1764, 1890, 2194, 2205, 2268, 2430, 2646, 2835, 2940, 3291, 3402, 3780, 3969, 4388, 4410, 4860, 5292, 5485, 5670, 6582, 6615, 6804, 7679, 7938, 8505, 8820, 9873, 10970, 11340, 11907, 13164, 13230, 15358, 15876, 16455, 17010, 19746, 19845, 21940, 23037, 23814, 26460, 29619, 30716, 32910, 34020, 38395, 39492, 39690, 46074, 47628, 49365, 53753, 59238, 59535, 65820, 69111, 76790, 79380, 88857, 92148, 98730, 107506, 115185, 118476, 119070, 138222, 148095, 153580, 161259, 177714, 197460, 207333, 215012, 230370, 238140, 266571, 268765, 276444, 296190, 322518, 345555, 355428, 414666, 444285, 460740, 483777, 533142, 537530, 592380, 621999, 645036, 691110, 806295, 829332, 888570, 967554, 1036665, 1066284, 1075060, 1243998, 1332855, 1382220, 1451331, 1612590, 1777140, 1865997, 1935108, 2073330, 2418885, 2487996, 2665710, 2902662, 3109995, 3225180, 3731994, 4146660, 4353993, 4837770, 5331420, 5805324, 6219990, 7256655, 7463988, 8707986, 9329985, 9675540, 12439980, 13061979, 14513310, 17415972, 18659970, 21769965, 26123958, 29026620, 37319940, 43539930, 52247916, 65309895, 87079860, 130619790, 261239580]

約数ペア:

[(1, 261239580), (2, 130619790), (3, 87079860), (4, 65309895), (5, 52247916), (6, 43539930), (7, 37319940), (9, 29026620), (10, 26123958), (12, 21769965), (14, 18659970), (15, 17415972), (18, 14513310), (20, 13061979), (21, 12439980), (27, 9675540), (28, 9329985), (30, 8707986), (35, 7463988), (36, 7256655), (42, 6219990), (45, 5805324), (49, 5331420), (54, 4837770), (60, 4353993), (63, 4146660), (70, 3731994), (81, 3225180), (84, 3109995), (90, 2902662), (98, 2665710), (105, 2487996), (108, 2418885), (126, 2073330), (135, 1935108), (140, 1865997), (147, 1777140), (162, 1612590), (180, 1451331), (189, 1382220), (196, 1332855), (210, 1243998), (243, 1075060), (245, 1066284), (252, 1036665), (270, 967554), (294, 888570), (315, 829332), (324, 806295), (378, 691110), (405, 645036), (420, 621999), (441, 592380), (486, 537530), (490, 533142), (540, 483777), (567, 460740), (588, 444285), (630, 414666), (735, 355428), (756, 345555), (810, 322518), (882, 296190), (945, 276444), (972, 268765), (980, 266571), (1097, 238140), (1134, 230370), (1215, 215012), (1260, 207333), (1323, 197460), (1470, 177714), (1620, 161259), (1701, 153580), (1764, 148095), (1890, 138222), (2194, 119070), (2205, 118476), (2268, 115185), (2430, 107506), (2646, 98730), (2835, 92148), (2940, 88857), (3291, 79380), (3402, 76790), (3780, 69111), (3969, 65820), (4388, 59535), (4410, 59238), (4860, 53753), (5292, 49365), (5485, 47628), (5670, 46074), (6582, 39690), (6615, 39492), (6804, 38395), (7679, 34020), (7938, 32910), (8505, 30716), (8820, 29619), (9873, 26460), (10970, 23814), (11340, 23037), (11907, 21940), (13164, 19845), (13230, 19746), (15358, 17010), (15876, 16455)]