261426480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2551}}^1$

素因数の和:2635

約数の個数: 160

約数和(自身を含む): 941749248

約数和(自身を除く): 680322768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 210, 240, 244, 280, 305, 336, 366, 420, 427, 488, 560, 610, 732, 840, 854, 915, 976, 1220, 1281, 1464, 1680, 1708, 1830, 2135, 2440, 2551, 2562, 2928, 3416, 3660, 4270, 4880, 5102, 5124, 6405, 6832, 7320, 7653, 8540, 10204, 10248, 12755, 12810, 14640, 15306, 17080, 17857, 20408, 20496, 25510, 25620, 30612, 34160, 35714, 38265, 40816, 51020, 51240, 53571, 61224, 71428, 76530, 89285, 102040, 102480, 107142, 122448, 142856, 153060, 155611, 178570, 204080, 214284, 267855, 285712, 306120, 311222, 357140, 428568, 466833, 535710, 612240, 622444, 714280, 778055, 857136, 933666, 1071420, 1089277, 1244888, 1428560, 1556110, 1867332, 2142840, 2178554, 2334165, 2489776, 3112220, 3267831, 3734664, 4285680, 4357108, 4668330, 5446385, 6224440, 6535662, 7469328, 8714216, 9336660, 10892770, 12448880, 13071324, 16339155, 17428432, 18673320, 21785540, 26142648, 32678310, 37346640, 43571080, 52285296, 65356620, 87142160, 130713240, 261426480]

約数ペア:

[(1, 261426480), (2, 130713240), (3, 87142160), (4, 65356620), (5, 52285296), (6, 43571080), (7, 37346640), (8, 32678310), (10, 26142648), (12, 21785540), (14, 18673320), (15, 17428432), (16, 16339155), (20, 13071324), (21, 12448880), (24, 10892770), (28, 9336660), (30, 8714216), (35, 7469328), (40, 6535662), (42, 6224440), (48, 5446385), (56, 4668330), (60, 4357108), (61, 4285680), (70, 3734664), (80, 3267831), (84, 3112220), (105, 2489776), (112, 2334165), (120, 2178554), (122, 2142840), (140, 1867332), (168, 1556110), (183, 1428560), (210, 1244888), (240, 1089277), (244, 1071420), (280, 933666), (305, 857136), (336, 778055), (366, 714280), (420, 622444), (427, 612240), (488, 535710), (560, 466833), (610, 428568), (732, 357140), (840, 311222), (854, 306120), (915, 285712), (976, 267855), (1220, 214284), (1281, 204080), (1464, 178570), (1680, 155611), (1708, 153060), (1830, 142856), (2135, 122448), (2440, 107142), (2551, 102480), (2562, 102040), (2928, 89285), (3416, 76530), (3660, 71428), (4270, 61224), (4880, 53571), (5102, 51240), (5124, 51020), (6405, 40816), (6832, 38265), (7320, 35714), (7653, 34160), (8540, 30612), (10204, 25620), (10248, 25510), (12755, 20496), (12810, 20408), (14640, 17857), (15306, 17080)]