321515880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12347}}^1$

素因数の和:12399

約数の個数: 128

約数和(自身を含む): 1137991680

約数和(自身を除く): 816475800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 12347, 13020, 24694, 26040, 37041, 49388, 61735, 74082, 86429, 98776, 123470, 148164, 172858, 185205, 246940, 259287, 296328, 345716, 370410, 382757, 432145, 493880, 518574, 691432, 740820, 765514, 864290, 1037148, 1148271, 1296435, 1481640, 1531028, 1728580, 1913785, 2074296, 2296542, 2592870, 2679299, 3062056, 3457160, 3827570, 4593084, 5185740, 5358598, 5741355, 7655140, 8037897, 9186168, 10371480, 10717196, 11482710, 13396495, 15310280, 16075794, 21434392, 22965420, 26792990, 32151588, 40189485, 45930840, 53585980, 64303176, 80378970, 107171960, 160757940, 321515880]

約数ペア:

[(1, 321515880), (2, 160757940), (3, 107171960), (4, 80378970), (5, 64303176), (6, 53585980), (7, 45930840), (8, 40189485), (10, 32151588), (12, 26792990), (14, 22965420), (15, 21434392), (20, 16075794), (21, 15310280), (24, 13396495), (28, 11482710), (30, 10717196), (31, 10371480), (35, 9186168), (40, 8037897), (42, 7655140), (56, 5741355), (60, 5358598), (62, 5185740), (70, 4593084), (84, 3827570), (93, 3457160), (105, 3062056), (120, 2679299), (124, 2592870), (140, 2296542), (155, 2074296), (168, 1913785), (186, 1728580), (210, 1531028), (217, 1481640), (248, 1296435), (280, 1148271), (310, 1037148), (372, 864290), (420, 765514), (434, 740820), (465, 691432), (620, 518574), (651, 493880), (744, 432145), (840, 382757), (868, 370410), (930, 345716), (1085, 296328), (1240, 259287), (1302, 246940), (1736, 185205), (1860, 172858), (2170, 148164), (2604, 123470), (3255, 98776), (3720, 86429), (4340, 74082), (5208, 61735), (6510, 49388), (8680, 37041), (12347, 26040), (13020, 24694)]