21977600

素因数分解:

$2^9\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:146

約数の個数: 120

約数和(自身を含む): 58225068

約数和(自身を除く): 36247468

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 101, 128, 136, 160, 170, 200, 202, 256, 272, 320, 340, 400, 404, 425, 505, 512, 544, 640, 680, 800, 808, 850, 1010, 1088, 1280, 1360, 1600, 1616, 1700, 1717, 2020, 2176, 2525, 2560, 2720, 3200, 3232, 3400, 3434, 4040, 4352, 5050, 5440, 6400, 6464, 6800, 6868, 8080, 8585, 8704, 10100, 10880, 12800, 12928, 13600, 13736, 16160, 17170, 20200, 21760, 25856, 27200, 27472, 32320, 34340, 40400, 42925, 43520, 51712, 54400, 54944, 64640, 68680, 80800, 85850, 108800, 109888, 129280, 137360, 161600, 171700, 217600, 219776, 258560, 274720, 323200, 343400, 439552, 549440, 646400, 686800, 879104, 1098880, 1292800, 1373600, 2197760, 2747200, 4395520, 5494400, 10988800, 21977600]

約数ペア:

[(1, 21977600), (2, 10988800), (4, 5494400), (5, 4395520), (8, 2747200), (10, 2197760), (16, 1373600), (17, 1292800), (20, 1098880), (25, 879104), (32, 686800), (34, 646400), (40, 549440), (50, 439552), (64, 343400), (68, 323200), (80, 274720), (85, 258560), (100, 219776), (101, 217600), (128, 171700), (136, 161600), (160, 137360), (170, 129280), (200, 109888), (202, 108800), (256, 85850), (272, 80800), (320, 68680), (340, 64640), (400, 54944), (404, 54400), (425, 51712), (505, 43520), (512, 42925), (544, 40400), (640, 34340), (680, 32320), (800, 27472), (808, 27200), (850, 25856), (1010, 21760), (1088, 20200), (1280, 17170), (1360, 16160), (1600, 13736), (1616, 13600), (1700, 12928), (1717, 12800), (2020, 10880), (2176, 10100), (2525, 8704), (2560, 8585), (2720, 8080), (3200, 6868), (3232, 6800), (3400, 6464), (3434, 6400), (4040, 5440), (4352, 5050)]