81096800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 215142480

約数和(自身を除く): 134045680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 67, 68, 80, 85, 89, 100, 134, 136, 160, 170, 178, 200, 268, 272, 335, 340, 356, 400, 425, 445, 536, 544, 670, 680, 712, 800, 850, 890, 1072, 1139, 1340, 1360, 1424, 1513, 1675, 1700, 1780, 2144, 2225, 2278, 2680, 2720, 2848, 3026, 3350, 3400, 3560, 4450, 4556, 5360, 5695, 5963, 6052, 6700, 6800, 7120, 7565, 8900, 9112, 10720, 11390, 11926, 12104, 13400, 13600, 14240, 15130, 17800, 18224, 22780, 23852, 24208, 26800, 28475, 29815, 30260, 35600, 36448, 37825, 45560, 47704, 48416, 53600, 56950, 59630, 60520, 71200, 75650, 91120, 95408, 101371, 113900, 119260, 121040, 149075, 151300, 182240, 190816, 202742, 227800, 238520, 242080, 298150, 302600, 405484, 455600, 477040, 506855, 596300, 605200, 810968, 911200, 954080, 1013710, 1192600, 1210400, 1621936, 2027420, 2385200, 2534275, 3243872, 4054840, 4770400, 5068550, 8109680, 10137100, 16219360, 20274200, 40548400, 81096800]

約数ペア:

[(1, 81096800), (2, 40548400), (4, 20274200), (5, 16219360), (8, 10137100), (10, 8109680), (16, 5068550), (17, 4770400), (20, 4054840), (25, 3243872), (32, 2534275), (34, 2385200), (40, 2027420), (50, 1621936), (67, 1210400), (68, 1192600), (80, 1013710), (85, 954080), (89, 911200), (100, 810968), (134, 605200), (136, 596300), (160, 506855), (170, 477040), (178, 455600), (200, 405484), (268, 302600), (272, 298150), (335, 242080), (340, 238520), (356, 227800), (400, 202742), (425, 190816), (445, 182240), (536, 151300), (544, 149075), (670, 121040), (680, 119260), (712, 113900), (800, 101371), (850, 95408), (890, 91120), (1072, 75650), (1139, 71200), (1340, 60520), (1360, 59630), (1424, 56950), (1513, 53600), (1675, 48416), (1700, 47704), (1780, 45560), (2144, 37825), (2225, 36448), (2278, 35600), (2680, 30260), (2720, 29815), (2848, 28475), (3026, 26800), (3350, 24208), (3400, 23852), (3560, 22780), (4450, 18224), (4556, 17800), (5360, 15130), (5695, 14240), (5963, 13600), (6052, 13400), (6700, 12104), (6800, 11926), (7120, 11390), (7565, 10720), (8900, 9112)]