321316240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:357

約数の個数: 160

約数和(自身を含む): 895942656

約数和(自身を除く): 574626416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 83, 112, 124, 140, 155, 166, 217, 223, 248, 280, 310, 332, 415, 434, 446, 496, 560, 581, 620, 664, 830, 868, 892, 1085, 1115, 1162, 1240, 1328, 1561, 1660, 1736, 1784, 2170, 2230, 2324, 2480, 2573, 2905, 3122, 3320, 3472, 3568, 4340, 4460, 4648, 5146, 5810, 6244, 6640, 6913, 7805, 8680, 8920, 9296, 10292, 11620, 12488, 12865, 13826, 15610, 17360, 17840, 18011, 18509, 20584, 23240, 24976, 25730, 27652, 31220, 34565, 36022, 37018, 41168, 46480, 48391, 51460, 55304, 62440, 69130, 72044, 74036, 90055, 92545, 96782, 102920, 110608, 124880, 129563, 138260, 144088, 148072, 180110, 185090, 193564, 205840, 241955, 259126, 276520, 288176, 296144, 360220, 370180, 387128, 483910, 518252, 553040, 573779, 647815, 720440, 740360, 774256, 967820, 1036504, 1147558, 1295630, 1440880, 1480720, 1935640, 2073008, 2295116, 2591260, 2868895, 3871280, 4016453, 4590232, 5182520, 5737790, 8032906, 9180464, 10365040, 11475580, 16065812, 20082265, 22951160, 32131624, 40164530, 45902320, 64263248, 80329060, 160658120, 321316240]

約数ペア:

[(1, 321316240), (2, 160658120), (4, 80329060), (5, 64263248), (7, 45902320), (8, 40164530), (10, 32131624), (14, 22951160), (16, 20082265), (20, 16065812), (28, 11475580), (31, 10365040), (35, 9180464), (40, 8032906), (56, 5737790), (62, 5182520), (70, 4590232), (80, 4016453), (83, 3871280), (112, 2868895), (124, 2591260), (140, 2295116), (155, 2073008), (166, 1935640), (217, 1480720), (223, 1440880), (248, 1295630), (280, 1147558), (310, 1036504), (332, 967820), (415, 774256), (434, 740360), (446, 720440), (496, 647815), (560, 573779), (581, 553040), (620, 518252), (664, 483910), (830, 387128), (868, 370180), (892, 360220), (1085, 296144), (1115, 288176), (1162, 276520), (1240, 259126), (1328, 241955), (1561, 205840), (1660, 193564), (1736, 185090), (1784, 180110), (2170, 148072), (2230, 144088), (2324, 138260), (2480, 129563), (2573, 124880), (2905, 110608), (3122, 102920), (3320, 96782), (3472, 92545), (3568, 90055), (4340, 74036), (4460, 72044), (4648, 69130), (5146, 62440), (5810, 55304), (6244, 51460), (6640, 48391), (6913, 46480), (7805, 41168), (8680, 37018), (8920, 36022), (9296, 34565), (10292, 31220), (11620, 27652), (12488, 25730), (12865, 24976), (13826, 23240), (15610, 20584), (17360, 18509), (17840, 18011)]