256841820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:345

約数の個数: 192

約数和(自身を含む): 840806400

約数和(自身を除く): 583964580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 67, 90, 93, 108, 124, 134, 135, 155, 180, 186, 201, 229, 268, 270, 279, 310, 335, 372, 402, 458, 465, 540, 558, 603, 620, 670, 687, 804, 837, 916, 930, 1005, 1116, 1145, 1206, 1340, 1374, 1395, 1674, 1809, 1860, 2010, 2061, 2077, 2290, 2412, 2748, 2790, 3015, 3348, 3435, 3618, 4020, 4122, 4154, 4185, 4580, 5580, 6030, 6183, 6231, 6870, 7099, 7236, 8244, 8308, 8370, 9045, 10305, 10385, 12060, 12366, 12462, 13740, 14198, 15343, 16740, 18090, 18693, 20610, 20770, 21297, 24732, 24924, 28396, 30686, 30915, 31155, 35495, 36180, 37386, 41220, 41540, 42594, 46029, 56079, 61372, 61830, 62310, 63891, 70990, 74772, 76715, 85188, 92058, 93465, 106485, 112158, 123660, 124620, 127782, 138087, 141980, 153430, 184116, 186930, 191673, 212970, 224316, 230145, 255564, 276174, 280395, 306860, 319455, 373860, 383346, 414261, 425940, 460290, 475633, 552348, 560790, 638910, 690435, 766692, 828522, 920580, 951266, 958365, 1121580, 1277820, 1380870, 1426899, 1657044, 1902532, 1916730, 2071305, 2378165, 2761740, 2853798, 3833460, 4142610, 4280697, 4756330, 5707596, 7134495, 8285220, 8561394, 9512660, 12842091, 14268990, 17122788, 21403485, 25684182, 28537980, 42806970, 51368364, 64210455, 85613940, 128420910, 256841820]

約数ペア:

[(1, 256841820), (2, 128420910), (3, 85613940), (4, 64210455), (5, 51368364), (6, 42806970), (9, 28537980), (10, 25684182), (12, 21403485), (15, 17122788), (18, 14268990), (20, 12842091), (27, 9512660), (30, 8561394), (31, 8285220), (36, 7134495), (45, 5707596), (54, 4756330), (60, 4280697), (62, 4142610), (67, 3833460), (90, 2853798), (93, 2761740), (108, 2378165), (124, 2071305), (134, 1916730), (135, 1902532), (155, 1657044), (180, 1426899), (186, 1380870), (201, 1277820), (229, 1121580), (268, 958365), (270, 951266), (279, 920580), (310, 828522), (335, 766692), (372, 690435), (402, 638910), (458, 560790), (465, 552348), (540, 475633), (558, 460290), (603, 425940), (620, 414261), (670, 383346), (687, 373860), (804, 319455), (837, 306860), (916, 280395), (930, 276174), (1005, 255564), (1116, 230145), (1145, 224316), (1206, 212970), (1340, 191673), (1374, 186930), (1395, 184116), (1674, 153430), (1809, 141980), (1860, 138087), (2010, 127782), (2061, 124620), (2077, 123660), (2290, 112158), (2412, 106485), (2748, 93465), (2790, 92058), (3015, 85188), (3348, 76715), (3435, 74772), (3618, 70990), (4020, 63891), (4122, 62310), (4154, 61830), (4185, 61372), (4580, 56079), (5580, 46029), (6030, 42594), (6183, 41540), (6231, 41220), (6870, 37386), (7099, 36180), (7236, 35495), (8244, 31155), (8308, 30915), (8370, 30686), (9045, 28396), (10305, 24924), (10385, 24732), (12060, 21297), (12366, 20770), (12462, 20610), (13740, 18693), (14198, 18090), (15343, 16740)]