28125440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 79863168

約数和(自身を除く): 51737728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 73, 80, 86, 112, 128, 140, 146, 160, 172, 215, 224, 256, 280, 292, 301, 320, 344, 365, 430, 448, 511, 560, 584, 602, 640, 688, 730, 860, 896, 1022, 1120, 1168, 1204, 1280, 1376, 1460, 1505, 1720, 1792, 2044, 2240, 2336, 2408, 2555, 2752, 2920, 3010, 3139, 3440, 4088, 4480, 4672, 4816, 5110, 5504, 5840, 6020, 6278, 6880, 8176, 8960, 9344, 9632, 10220, 11008, 11680, 12040, 12556, 13760, 15695, 16352, 18688, 19264, 20440, 21973, 23360, 24080, 25112, 27520, 31390, 32704, 38528, 40880, 43946, 46720, 48160, 50224, 55040, 62780, 65408, 77056, 81760, 87892, 93440, 96320, 100448, 109865, 125560, 130816, 163520, 175784, 192640, 200896, 219730, 251120, 327040, 351568, 385280, 401792, 439460, 502240, 654080, 703136, 803584, 878920, 1004480, 1406272, 1757840, 2008960, 2812544, 3515680, 4017920, 5625088, 7031360, 14062720, 28125440]

約数ペア:

[(1, 28125440), (2, 14062720), (4, 7031360), (5, 5625088), (7, 4017920), (8, 3515680), (10, 2812544), (14, 2008960), (16, 1757840), (20, 1406272), (28, 1004480), (32, 878920), (35, 803584), (40, 703136), (43, 654080), (56, 502240), (64, 439460), (70, 401792), (73, 385280), (80, 351568), (86, 327040), (112, 251120), (128, 219730), (140, 200896), (146, 192640), (160, 175784), (172, 163520), (215, 130816), (224, 125560), (256, 109865), (280, 100448), (292, 96320), (301, 93440), (320, 87892), (344, 81760), (365, 77056), (430, 65408), (448, 62780), (511, 55040), (560, 50224), (584, 48160), (602, 46720), (640, 43946), (688, 40880), (730, 38528), (860, 32704), (896, 31390), (1022, 27520), (1120, 25112), (1168, 24080), (1204, 23360), (1280, 21973), (1376, 20440), (1460, 19264), (1505, 18688), (1720, 16352), (1792, 15695), (2044, 13760), (2240, 12556), (2336, 12040), (2408, 11680), (2555, 11008), (2752, 10220), (2920, 9632), (3010, 9344), (3139, 8960), (3440, 8176), (4088, 6880), (4480, 6278), (4672, 6020), (4816, 5840), (5110, 5504)]