1283840

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 3311280

約数和(自身を除く): 2027440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 64, 68, 80, 85, 118, 128, 136, 160, 170, 236, 256, 272, 295, 320, 340, 472, 544, 590, 640, 680, 944, 1003, 1088, 1180, 1280, 1360, 1888, 2006, 2176, 2360, 2720, 3776, 4012, 4352, 4720, 5015, 5440, 7552, 8024, 9440, 10030, 10880, 15104, 16048, 18880, 20060, 21760, 32096, 37760, 40120, 64192, 75520, 80240, 128384, 160480, 256768, 320960, 641920, 1283840]

約数ペア:

[(1, 1283840), (2, 641920), (4, 320960), (5, 256768), (8, 160480), (10, 128384), (16, 80240), (17, 75520), (20, 64192), (32, 40120), (34, 37760), (40, 32096), (59, 21760), (64, 20060), (68, 18880), (80, 16048), (85, 15104), (118, 10880), (128, 10030), (136, 9440), (160, 8024), (170, 7552), (236, 5440), (256, 5015), (272, 4720), (295, 4352), (320, 4012), (340, 3776), (472, 2720), (544, 2360), (590, 2176), (640, 2006), (680, 1888), (944, 1360), (1003, 1280), (1088, 1180)]