128207940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 192

約数和(自身を含む): 435240960

約数和(自身を除く): 307033020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 43, 60, 62, 70, 84, 86, 93, 105, 124, 129, 140, 155, 172, 186, 210, 215, 217, 229, 258, 301, 310, 372, 420, 430, 434, 458, 465, 516, 602, 620, 645, 651, 687, 860, 868, 903, 916, 930, 1085, 1145, 1204, 1290, 1302, 1333, 1374, 1505, 1603, 1806, 1860, 2170, 2290, 2580, 2604, 2666, 2748, 3010, 3206, 3255, 3435, 3612, 3999, 4340, 4515, 4580, 4809, 5332, 6020, 6412, 6510, 6665, 6870, 7099, 7998, 8015, 9030, 9331, 9618, 9847, 13020, 13330, 13740, 14198, 15996, 16030, 18060, 18662, 19236, 19694, 19995, 21297, 24045, 26660, 27993, 28396, 29541, 32060, 35495, 37324, 39388, 39990, 42594, 46655, 48090, 49235, 49693, 55986, 59082, 68929, 70990, 79980, 85188, 93310, 96180, 98470, 99386, 106485, 111972, 118164, 137858, 139965, 141980, 147705, 149079, 186620, 196940, 198772, 206787, 212970, 248465, 275716, 279930, 295410, 298158, 305257, 344645, 413574, 425940, 496930, 559860, 590820, 596316, 610514, 689290, 745395, 827148, 915771, 993860, 1033935, 1221028, 1378580, 1490790, 1526285, 1831542, 2067870, 2136799, 2981580, 3052570, 3663084, 4135740, 4273598, 4578855, 6105140, 6410397, 8547196, 9157710, 10683995, 12820794, 18315420, 21367990, 25641588, 32051985, 42735980, 64103970, 128207940]

約数ペア:

[(1, 128207940), (2, 64103970), (3, 42735980), (4, 32051985), (5, 25641588), (6, 21367990), (7, 18315420), (10, 12820794), (12, 10683995), (14, 9157710), (15, 8547196), (20, 6410397), (21, 6105140), (28, 4578855), (30, 4273598), (31, 4135740), (35, 3663084), (42, 3052570), (43, 2981580), (60, 2136799), (62, 2067870), (70, 1831542), (84, 1526285), (86, 1490790), (93, 1378580), (105, 1221028), (124, 1033935), (129, 993860), (140, 915771), (155, 827148), (172, 745395), (186, 689290), (210, 610514), (215, 596316), (217, 590820), (229, 559860), (258, 496930), (301, 425940), (310, 413574), (372, 344645), (420, 305257), (430, 298158), (434, 295410), (458, 279930), (465, 275716), (516, 248465), (602, 212970), (620, 206787), (645, 198772), (651, 196940), (687, 186620), (860, 149079), (868, 147705), (903, 141980), (916, 139965), (930, 137858), (1085, 118164), (1145, 111972), (1204, 106485), (1290, 99386), (1302, 98470), (1333, 96180), (1374, 93310), (1505, 85188), (1603, 79980), (1806, 70990), (1860, 68929), (2170, 59082), (2290, 55986), (2580, 49693), (2604, 49235), (2666, 48090), (2748, 46655), (3010, 42594), (3206, 39990), (3255, 39388), (3435, 37324), (3612, 35495), (3999, 32060), (4340, 29541), (4515, 28396), (4580, 27993), (4809, 26660), (5332, 24045), (6020, 21297), (6412, 19995), (6510, 19694), (6665, 19236), (6870, 18662), (7099, 18060), (7998, 16030), (8015, 15996), (9030, 14198), (9331, 13740), (9618, 13330), (9847, 13020)]