71294720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 199657920

約数和(自身を除く): 128363200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 109, 112, 128, 140, 146, 160, 218, 224, 256, 280, 292, 320, 365, 436, 448, 511, 545, 560, 584, 640, 730, 763, 872, 896, 1022, 1090, 1120, 1168, 1280, 1460, 1526, 1744, 1792, 2044, 2180, 2240, 2336, 2555, 2920, 3052, 3488, 3815, 4088, 4360, 4480, 4672, 5110, 5840, 6104, 6976, 7630, 7957, 8176, 8720, 8960, 9344, 10220, 11680, 12208, 13952, 15260, 15914, 16352, 17440, 18688, 20440, 23360, 24416, 27904, 30520, 31828, 32704, 34880, 39785, 40880, 46720, 48832, 55699, 61040, 63656, 65408, 69760, 79570, 81760, 93440, 97664, 111398, 122080, 127312, 130816, 139520, 159140, 163520, 195328, 222796, 244160, 254624, 278495, 318280, 327040, 445592, 488320, 509248, 556990, 636560, 654080, 891184, 976640, 1018496, 1113980, 1273120, 1782368, 2036992, 2227960, 2546240, 3564736, 4455920, 5092480, 7129472, 8911840, 10184960, 14258944, 17823680, 35647360, 71294720]

約数ペア:

[(1, 71294720), (2, 35647360), (4, 17823680), (5, 14258944), (7, 10184960), (8, 8911840), (10, 7129472), (14, 5092480), (16, 4455920), (20, 3564736), (28, 2546240), (32, 2227960), (35, 2036992), (40, 1782368), (56, 1273120), (64, 1113980), (70, 1018496), (73, 976640), (80, 891184), (109, 654080), (112, 636560), (128, 556990), (140, 509248), (146, 488320), (160, 445592), (218, 327040), (224, 318280), (256, 278495), (280, 254624), (292, 244160), (320, 222796), (365, 195328), (436, 163520), (448, 159140), (511, 139520), (545, 130816), (560, 127312), (584, 122080), (640, 111398), (730, 97664), (763, 93440), (872, 81760), (896, 79570), (1022, 69760), (1090, 65408), (1120, 63656), (1168, 61040), (1280, 55699), (1460, 48832), (1526, 46720), (1744, 40880), (1792, 39785), (2044, 34880), (2180, 32704), (2240, 31828), (2336, 30520), (2555, 27904), (2920, 24416), (3052, 23360), (3488, 20440), (3815, 18688), (4088, 17440), (4360, 16352), (4480, 15914), (4672, 15260), (5110, 13952), (5840, 12208), (6104, 11680), (6976, 10220), (7630, 9344), (7957, 8960), (8176, 8720)]