256330320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 160

約数和(自身を含む): 829661184

約数和(自身を除く): 573330864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 131, 155, 186, 240, 248, 262, 263, 310, 372, 393, 465, 496, 524, 526, 620, 655, 744, 786, 789, 930, 1048, 1052, 1240, 1310, 1315, 1488, 1572, 1578, 1860, 1965, 2096, 2104, 2480, 2620, 2630, 3144, 3156, 3720, 3930, 3945, 4061, 4208, 5240, 5260, 6288, 6312, 7440, 7860, 7890, 8122, 8153, 10480, 10520, 12183, 12624, 15720, 15780, 16244, 16306, 20305, 21040, 24366, 24459, 31440, 31560, 32488, 32612, 34453, 40610, 40765, 48732, 48918, 60915, 63120, 64976, 65224, 68906, 81220, 81530, 97464, 97836, 103359, 121830, 122295, 130448, 137812, 162440, 163060, 172265, 194928, 195672, 206718, 243660, 244590, 275624, 324880, 326120, 344530, 391344, 413436, 487320, 489180, 516795, 551248, 652240, 689060, 826872, 974640, 978360, 1033590, 1068043, 1378120, 1653744, 1956720, 2067180, 2136086, 2756240, 3204129, 4134360, 4272172, 5340215, 6408258, 8268720, 8544344, 10680430, 12816516, 16020645, 17088688, 21360860, 25633032, 32041290, 42721720, 51266064, 64082580, 85443440, 128165160, 256330320]

約数ペア:

[(1, 256330320), (2, 128165160), (3, 85443440), (4, 64082580), (5, 51266064), (6, 42721720), (8, 32041290), (10, 25633032), (12, 21360860), (15, 17088688), (16, 16020645), (20, 12816516), (24, 10680430), (30, 8544344), (31, 8268720), (40, 6408258), (48, 5340215), (60, 4272172), (62, 4134360), (80, 3204129), (93, 2756240), (120, 2136086), (124, 2067180), (131, 1956720), (155, 1653744), (186, 1378120), (240, 1068043), (248, 1033590), (262, 978360), (263, 974640), (310, 826872), (372, 689060), (393, 652240), (465, 551248), (496, 516795), (524, 489180), (526, 487320), (620, 413436), (655, 391344), (744, 344530), (786, 326120), (789, 324880), (930, 275624), (1048, 244590), (1052, 243660), (1240, 206718), (1310, 195672), (1315, 194928), (1488, 172265), (1572, 163060), (1578, 162440), (1860, 137812), (1965, 130448), (2096, 122295), (2104, 121830), (2480, 103359), (2620, 97836), (2630, 97464), (3144, 81530), (3156, 81220), (3720, 68906), (3930, 65224), (3945, 64976), (4061, 63120), (4208, 60915), (5240, 48918), (5260, 48732), (6288, 40765), (6312, 40610), (7440, 34453), (7860, 32612), (7890, 32488), (8122, 31560), (8153, 31440), (10480, 24459), (10520, 24366), (12183, 21040), (12624, 20305), (15720, 16306), (15780, 16244)]