18680960

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 47910420

約数和(自身を除く): 29229460

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 101, 128, 136, 160, 170, 202, 272, 289, 320, 340, 404, 505, 544, 578, 640, 680, 808, 1010, 1088, 1156, 1360, 1445, 1616, 1717, 2020, 2176, 2312, 2720, 2890, 3232, 3434, 4040, 4624, 5440, 5780, 6464, 6868, 8080, 8585, 9248, 10880, 11560, 12928, 13736, 16160, 17170, 18496, 23120, 27472, 29189, 32320, 34340, 36992, 46240, 54944, 58378, 64640, 68680, 92480, 109888, 116756, 137360, 145945, 184960, 219776, 233512, 274720, 291890, 467024, 549440, 583780, 934048, 1098880, 1167560, 1868096, 2335120, 3736192, 4670240, 9340480, 18680960]

約数ペア:

[(1, 18680960), (2, 9340480), (4, 4670240), (5, 3736192), (8, 2335120), (10, 1868096), (16, 1167560), (17, 1098880), (20, 934048), (32, 583780), (34, 549440), (40, 467024), (64, 291890), (68, 274720), (80, 233512), (85, 219776), (101, 184960), (128, 145945), (136, 137360), (160, 116756), (170, 109888), (202, 92480), (272, 68680), (289, 64640), (320, 58378), (340, 54944), (404, 46240), (505, 36992), (544, 34340), (578, 32320), (640, 29189), (680, 27472), (808, 23120), (1010, 18496), (1088, 17170), (1156, 16160), (1360, 13736), (1445, 12928), (1616, 11560), (1717, 10880), (2020, 9248), (2176, 8585), (2312, 8080), (2720, 6868), (2890, 6464), (3232, 5780), (3434, 5440), (4040, 4624)]