81882640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2003}}^1$

素因数の和:2096

約数の個数: 80

約数和(自身を含む): 220664448

約数和(自身を除く): 138781808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2003, 2044, 2555, 2920, 4006, 4088, 5110, 5840, 8012, 8176, 10015, 10220, 14021, 16024, 20030, 20440, 28042, 32048, 40060, 40880, 56084, 70105, 80120, 112168, 140210, 146219, 160240, 224336, 280420, 292438, 560840, 584876, 731095, 1023533, 1121680, 1169752, 1462190, 2047066, 2339504, 2924380, 4094132, 5117665, 5848760, 8188264, 10235330, 11697520, 16376528, 20470660, 40941320, 81882640]

約数ペア:

[(1, 81882640), (2, 40941320), (4, 20470660), (5, 16376528), (7, 11697520), (8, 10235330), (10, 8188264), (14, 5848760), (16, 5117665), (20, 4094132), (28, 2924380), (35, 2339504), (40, 2047066), (56, 1462190), (70, 1169752), (73, 1121680), (80, 1023533), (112, 731095), (140, 584876), (146, 560840), (280, 292438), (292, 280420), (365, 224336), (511, 160240), (560, 146219), (584, 140210), (730, 112168), (1022, 80120), (1168, 70105), (1460, 56084), (2003, 40880), (2044, 40060), (2555, 32048), (2920, 28042), (4006, 20440), (4088, 20030), (5110, 16024), (5840, 14021), (8012, 10220), (8176, 10015)]