28314720

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^2$

素因数の和:134

約数の個数: 216

約数和(自身を含む): 112550256

約数和(自身を除く): 84235536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 53, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 106, 112, 120, 126, 140, 144, 159, 160, 168, 180, 210, 212, 224, 240, 252, 265, 280, 288, 315, 318, 336, 360, 371, 420, 424, 477, 480, 504, 530, 560, 630, 636, 672, 720, 742, 795, 840, 848, 954, 1008, 1060, 1113, 1120, 1260, 1272, 1440, 1484, 1590, 1680, 1696, 1855, 1908, 2016, 2120, 2226, 2385, 2520, 2544, 2809, 2968, 3180, 3339, 3360, 3710, 3816, 4240, 4452, 4770, 5040, 5088, 5565, 5618, 5936, 6360, 6678, 7420, 7632, 8427, 8480, 8904, 9540, 10080, 11130, 11236, 11872, 12720, 13356, 14045, 14840, 15264, 16695, 16854, 17808, 19080, 19663, 22260, 22472, 25281, 25440, 26712, 28090, 29680, 33390, 33708, 35616, 38160, 39326, 42135, 44520, 44944, 50562, 53424, 56180, 58989, 59360, 66780, 67416, 76320, 78652, 84270, 89040, 89888, 98315, 101124, 106848, 112360, 117978, 126405, 133560, 134832, 157304, 168540, 176967, 178080, 196630, 202248, 224720, 235956, 252810, 267120, 269664, 294945, 314608, 337080, 353934, 393260, 404496, 449440, 471912, 505620, 534240, 589890, 629216, 674160, 707868, 786520, 808992, 884835, 943824, 1011240, 1179780, 1348320, 1415736, 1573040, 1769670, 1887648, 2022480, 2359560, 2831472, 3146080, 3539340, 4044960, 4719120, 5662944, 7078680, 9438240, 14157360, 28314720]

約数ペア:

[(1, 28314720), (2, 14157360), (3, 9438240), (4, 7078680), (5, 5662944), (6, 4719120), (7, 4044960), (8, 3539340), (9, 3146080), (10, 2831472), (12, 2359560), (14, 2022480), (15, 1887648), (16, 1769670), (18, 1573040), (20, 1415736), (21, 1348320), (24, 1179780), (28, 1011240), (30, 943824), (32, 884835), (35, 808992), (36, 786520), (40, 707868), (42, 674160), (45, 629216), (48, 589890), (53, 534240), (56, 505620), (60, 471912), (63, 449440), (70, 404496), (72, 393260), (80, 353934), (84, 337080), (90, 314608), (96, 294945), (105, 269664), (106, 267120), (112, 252810), (120, 235956), (126, 224720), (140, 202248), (144, 196630), (159, 178080), (160, 176967), (168, 168540), (180, 157304), (210, 134832), (212, 133560), (224, 126405), (240, 117978), (252, 112360), (265, 106848), (280, 101124), (288, 98315), (315, 89888), (318, 89040), (336, 84270), (360, 78652), (371, 76320), (420, 67416), (424, 66780), (477, 59360), (480, 58989), (504, 56180), (530, 53424), (560, 50562), (630, 44944), (636, 44520), (672, 42135), (720, 39326), (742, 38160), (795, 35616), (840, 33708), (848, 33390), (954, 29680), (1008, 28090), (1060, 26712), (1113, 25440), (1120, 25281), (1260, 22472), (1272, 22260), (1440, 19663), (1484, 19080), (1590, 17808), (1680, 16854), (1696, 16695), (1855, 15264), (1908, 14840), (2016, 14045), (2120, 13356), (2226, 12720), (2385, 11872), (2520, 11236), (2544, 11130), (2809, 10080), (2968, 9540), (3180, 8904), (3339, 8480), (3360, 8427), (3710, 7632), (3816, 7420), (4240, 6678), (4452, 6360), (4770, 5936), (5040, 5618), (5088, 5565)]