320326720

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 168

約数和(自身を含む): 917326080

約数和(自身を除く): 596999360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 320, 392, 434, 448, 490, 496, 560, 620, 659, 784, 868, 980, 992, 1085, 1120, 1240, 1318, 1519, 1568, 1736, 1960, 1984, 2170, 2240, 2480, 2636, 3038, 3136, 3295, 3472, 3920, 4340, 4613, 4960, 5272, 6076, 6590, 6944, 7595, 7840, 8680, 9226, 9920, 10544, 12152, 13180, 13888, 15190, 15680, 17360, 18452, 20429, 21088, 23065, 24304, 26360, 30380, 32291, 34720, 36904, 40858, 42176, 46130, 48608, 52720, 60760, 64582, 69440, 73808, 81716, 92260, 97216, 102145, 105440, 121520, 129164, 143003, 147616, 161455, 163432, 184520, 204290, 210880, 243040, 258328, 286006, 295232, 322910, 326864, 369040, 408580, 486080, 516656, 572012, 645820, 653728, 715015, 738080, 817160, 1001021, 1033312, 1144024, 1291640, 1307456, 1430030, 1476160, 1634320, 2002042, 2066624, 2288048, 2583280, 2860060, 3268640, 4004084, 4576096, 5005105, 5166560, 5720120, 6537280, 8008168, 9152192, 10010210, 10333120, 11440240, 16016336, 20020420, 22880480, 32032672, 40040840, 45760960, 64065344, 80081680, 160163360, 320326720]

約数ペア:

[(1, 320326720), (2, 160163360), (4, 80081680), (5, 64065344), (7, 45760960), (8, 40040840), (10, 32032672), (14, 22880480), (16, 20020420), (20, 16016336), (28, 11440240), (31, 10333120), (32, 10010210), (35, 9152192), (40, 8008168), (49, 6537280), (56, 5720120), (62, 5166560), (64, 5005105), (70, 4576096), (80, 4004084), (98, 3268640), (112, 2860060), (124, 2583280), (140, 2288048), (155, 2066624), (160, 2002042), (196, 1634320), (217, 1476160), (224, 1430030), (245, 1307456), (248, 1291640), (280, 1144024), (310, 1033312), (320, 1001021), (392, 817160), (434, 738080), (448, 715015), (490, 653728), (496, 645820), (560, 572012), (620, 516656), (659, 486080), (784, 408580), (868, 369040), (980, 326864), (992, 322910), (1085, 295232), (1120, 286006), (1240, 258328), (1318, 243040), (1519, 210880), (1568, 204290), (1736, 184520), (1960, 163432), (1984, 161455), (2170, 147616), (2240, 143003), (2480, 129164), (2636, 121520), (3038, 105440), (3136, 102145), (3295, 97216), (3472, 92260), (3920, 81716), (4340, 73808), (4613, 69440), (4960, 64582), (5272, 60760), (6076, 52720), (6590, 48608), (6944, 46130), (7595, 42176), (7840, 40858), (8680, 36904), (9226, 34720), (9920, 32291), (10544, 30380), (12152, 26360), (13180, 24304), (13888, 23065), (15190, 21088), (15680, 20429), (17360, 18452)]