28493280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 144

約数和(自身を含む): 99537984

約数和(自身を除く): 71044704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 282, 288, 360, 376, 421, 423, 470, 480, 564, 705, 720, 752, 842, 846, 940, 1128, 1263, 1410, 1440, 1504, 1684, 1692, 1880, 2105, 2115, 2256, 2526, 2820, 3368, 3384, 3760, 3789, 4210, 4230, 4512, 5052, 5640, 6315, 6736, 6768, 7520, 7578, 8420, 8460, 10104, 11280, 12630, 13472, 13536, 15156, 16840, 16920, 18945, 19787, 20208, 22560, 25260, 30312, 33680, 33840, 37890, 39574, 40416, 50520, 59361, 60624, 67360, 67680, 75780, 79148, 98935, 101040, 118722, 121248, 151560, 158296, 178083, 197870, 202080, 237444, 296805, 303120, 316592, 356166, 395740, 474888, 593610, 606240, 633184, 712332, 791480, 890415, 949776, 1187220, 1424664, 1582960, 1780830, 1899552, 2374440, 2849328, 3165920, 3561660, 4748880, 5698656, 7123320, 9497760, 14246640, 28493280]

約数ペア:

[(1, 28493280), (2, 14246640), (3, 9497760), (4, 7123320), (5, 5698656), (6, 4748880), (8, 3561660), (9, 3165920), (10, 2849328), (12, 2374440), (15, 1899552), (16, 1780830), (18, 1582960), (20, 1424664), (24, 1187220), (30, 949776), (32, 890415), (36, 791480), (40, 712332), (45, 633184), (47, 606240), (48, 593610), (60, 474888), (72, 395740), (80, 356166), (90, 316592), (94, 303120), (96, 296805), (120, 237444), (141, 202080), (144, 197870), (160, 178083), (180, 158296), (188, 151560), (235, 121248), (240, 118722), (282, 101040), (288, 98935), (360, 79148), (376, 75780), (421, 67680), (423, 67360), (470, 60624), (480, 59361), (564, 50520), (705, 40416), (720, 39574), (752, 37890), (842, 33840), (846, 33680), (940, 30312), (1128, 25260), (1263, 22560), (1410, 20208), (1440, 19787), (1504, 18945), (1684, 16920), (1692, 16840), (1880, 15156), (2105, 13536), (2115, 13472), (2256, 12630), (2526, 11280), (2820, 10104), (3368, 8460), (3384, 8420), (3760, 7578), (3789, 7520), (4210, 6768), (4230, 6736), (4512, 6315), (5052, 5640)]