28021440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 168

約数和(自身を含む): 95445072

約数和(自身を除く): 67423632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 101, 102, 120, 136, 160, 170, 192, 202, 204, 240, 255, 272, 289, 303, 320, 340, 404, 408, 480, 505, 510, 544, 578, 606, 680, 808, 816, 867, 960, 1010, 1020, 1088, 1156, 1212, 1360, 1445, 1515, 1616, 1632, 1717, 1734, 2020, 2040, 2312, 2424, 2720, 2890, 3030, 3232, 3264, 3434, 3468, 4040, 4080, 4335, 4624, 4848, 5151, 5440, 5780, 6060, 6464, 6868, 6936, 8080, 8160, 8585, 8670, 9248, 9696, 10302, 11560, 12120, 13736, 13872, 16160, 16320, 17170, 17340, 18496, 19392, 20604, 23120, 24240, 25755, 27472, 27744, 29189, 32320, 34340, 34680, 41208, 46240, 48480, 51510, 54944, 55488, 58378, 68680, 69360, 82416, 87567, 92480, 96960, 103020, 109888, 116756, 137360, 138720, 145945, 164832, 175134, 206040, 233512, 274720, 277440, 291890, 329664, 350268, 412080, 437835, 467024, 549440, 583780, 700536, 824160, 875670, 934048, 1167560, 1401072, 1648320, 1751340, 1868096, 2335120, 2802144, 3502680, 4670240, 5604288, 7005360, 9340480, 14010720, 28021440]

約数ペア:

[(1, 28021440), (2, 14010720), (3, 9340480), (4, 7005360), (5, 5604288), (6, 4670240), (8, 3502680), (10, 2802144), (12, 2335120), (15, 1868096), (16, 1751340), (17, 1648320), (20, 1401072), (24, 1167560), (30, 934048), (32, 875670), (34, 824160), (40, 700536), (48, 583780), (51, 549440), (60, 467024), (64, 437835), (68, 412080), (80, 350268), (85, 329664), (96, 291890), (101, 277440), (102, 274720), (120, 233512), (136, 206040), (160, 175134), (170, 164832), (192, 145945), (202, 138720), (204, 137360), (240, 116756), (255, 109888), (272, 103020), (289, 96960), (303, 92480), (320, 87567), (340, 82416), (404, 69360), (408, 68680), (480, 58378), (505, 55488), (510, 54944), (544, 51510), (578, 48480), (606, 46240), (680, 41208), (808, 34680), (816, 34340), (867, 32320), (960, 29189), (1010, 27744), (1020, 27472), (1088, 25755), (1156, 24240), (1212, 23120), (1360, 20604), (1445, 19392), (1515, 18496), (1616, 17340), (1632, 17170), (1717, 16320), (1734, 16160), (2020, 13872), (2040, 13736), (2312, 12120), (2424, 11560), (2720, 10302), (2890, 9696), (3030, 9248), (3232, 8670), (3264, 8585), (3434, 8160), (3468, 8080), (4040, 6936), (4080, 6868), (4335, 6464), (4624, 6060), (4848, 5780), (5151, 5440)]