81596480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:596

約数の個数: 112

約数和(自身を含む): 225552000

約数和(自身を除く): 143955520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 140, 146, 160, 224, 280, 292, 320, 365, 448, 499, 511, 560, 584, 730, 998, 1022, 1120, 1168, 1460, 1996, 2044, 2240, 2336, 2495, 2555, 2920, 3493, 3992, 4088, 4672, 4990, 5110, 5840, 6986, 7984, 8176, 9980, 10220, 11680, 13972, 15968, 16352, 17465, 19960, 20440, 23360, 27944, 31936, 32704, 34930, 36427, 39920, 40880, 55888, 69860, 72854, 79840, 81760, 111776, 139720, 145708, 159680, 163520, 182135, 223552, 254989, 279440, 291416, 364270, 509978, 558880, 582832, 728540, 1019956, 1117760, 1165664, 1274945, 1457080, 2039912, 2331328, 2549890, 2914160, 4079824, 5099780, 5828320, 8159648, 10199560, 11656640, 16319296, 20399120, 40798240, 81596480]

約数ペア:

[(1, 81596480), (2, 40798240), (4, 20399120), (5, 16319296), (7, 11656640), (8, 10199560), (10, 8159648), (14, 5828320), (16, 5099780), (20, 4079824), (28, 2914160), (32, 2549890), (35, 2331328), (40, 2039912), (56, 1457080), (64, 1274945), (70, 1165664), (73, 1117760), (80, 1019956), (112, 728540), (140, 582832), (146, 558880), (160, 509978), (224, 364270), (280, 291416), (292, 279440), (320, 254989), (365, 223552), (448, 182135), (499, 163520), (511, 159680), (560, 145708), (584, 139720), (730, 111776), (998, 81760), (1022, 79840), (1120, 72854), (1168, 69860), (1460, 55888), (1996, 40880), (2044, 39920), (2240, 36427), (2336, 34930), (2495, 32704), (2555, 31936), (2920, 27944), (3493, 23360), (3992, 20440), (4088, 19960), (4672, 17465), (4990, 16352), (5110, 15968), (5840, 13972), (6986, 11680), (7984, 10220), (8176, 9980)]