128542500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 180

約数和(自身を含む): 422161740

約数和(自身を除く): 293619240

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 29, 30, 36, 45, 50, 58, 60, 75, 87, 90, 100, 116, 125, 145, 150, 174, 180, 197, 225, 250, 261, 290, 300, 348, 375, 394, 435, 450, 500, 522, 580, 591, 625, 725, 750, 788, 870, 900, 985, 1044, 1125, 1182, 1250, 1305, 1450, 1500, 1740, 1773, 1875, 1970, 2175, 2250, 2364, 2500, 2610, 2900, 2955, 3546, 3625, 3750, 3940, 4350, 4500, 4925, 5220, 5625, 5713, 5910, 6525, 7092, 7250, 7500, 8700, 8865, 9850, 10875, 11250, 11426, 11820, 13050, 14500, 14775, 17139, 17730, 18125, 19700, 21750, 22500, 22852, 24625, 26100, 28565, 29550, 32625, 34278, 35460, 36250, 43500, 44325, 49250, 51417, 54375, 57130, 59100, 65250, 68556, 72500, 73875, 85695, 88650, 98500, 102834, 108750, 114260, 123125, 130500, 142825, 147750, 163125, 171390, 177300, 205668, 217500, 221625, 246250, 257085, 285650, 295500, 326250, 342780, 369375, 428475, 443250, 492500, 514170, 571300, 652500, 714125, 738750, 856950, 886500, 1028340, 1108125, 1285425, 1428250, 1477500, 1713900, 2142375, 2216250, 2570850, 2856500, 3570625, 4284750, 4432500, 5141700, 6427125, 7141250, 8569500, 10711875, 12854250, 14282500, 21423750, 25708500, 32135625, 42847500, 64271250, 128542500]

約数ペア:

[(1, 128542500), (2, 64271250), (3, 42847500), (4, 32135625), (5, 25708500), (6, 21423750), (9, 14282500), (10, 12854250), (12, 10711875), (15, 8569500), (18, 7141250), (20, 6427125), (25, 5141700), (29, 4432500), (30, 4284750), (36, 3570625), (45, 2856500), (50, 2570850), (58, 2216250), (60, 2142375), (75, 1713900), (87, 1477500), (90, 1428250), (100, 1285425), (116, 1108125), (125, 1028340), (145, 886500), (150, 856950), (174, 738750), (180, 714125), (197, 652500), (225, 571300), (250, 514170), (261, 492500), (290, 443250), (300, 428475), (348, 369375), (375, 342780), (394, 326250), (435, 295500), (450, 285650), (500, 257085), (522, 246250), (580, 221625), (591, 217500), (625, 205668), (725, 177300), (750, 171390), (788, 163125), (870, 147750), (900, 142825), (985, 130500), (1044, 123125), (1125, 114260), (1182, 108750), (1250, 102834), (1305, 98500), (1450, 88650), (1500, 85695), (1740, 73875), (1773, 72500), (1875, 68556), (1970, 65250), (2175, 59100), (2250, 57130), (2364, 54375), (2500, 51417), (2610, 49250), (2900, 44325), (2955, 43500), (3546, 36250), (3625, 35460), (3750, 34278), (3940, 32625), (4350, 29550), (4500, 28565), (4925, 26100), (5220, 24625), (5625, 22852), (5713, 22500), (5910, 21750), (6525, 19700), (7092, 18125), (7250, 17730), (7500, 17139), (8700, 14775), (8865, 14500), (9850, 13050), (10875, 11820), (11250, 11426)]