1640371440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{145423}}^1$

素因数の和:145486

約数の個数: 80

約数和(自身を含む): 5193381888

約数和(自身を除く): 3553010448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1880, 2256, 2820, 3760, 5640, 11280, 145423, 290846, 436269, 581692, 727115, 872538, 1163384, 1454230, 1745076, 2181345, 2326768, 2908460, 3490152, 4362690, 5816920, 6834881, 6980304, 8725380, 11633840, 13669762, 17450760, 20504643, 27339524, 34174405, 34901520, 41009286, 54679048, 68348810, 82018572, 102523215, 109358096, 136697620, 164037144, 205046430, 273395240, 328074288, 410092860, 546790480, 820185720, 1640371440]

約数ペア:

[(1, 1640371440), (2, 820185720), (3, 546790480), (4, 410092860), (5, 328074288), (6, 273395240), (8, 205046430), (10, 164037144), (12, 136697620), (15, 109358096), (16, 102523215), (20, 82018572), (24, 68348810), (30, 54679048), (40, 41009286), (47, 34901520), (48, 34174405), (60, 27339524), (80, 20504643), (94, 17450760), (120, 13669762), (141, 11633840), (188, 8725380), (235, 6980304), (240, 6834881), (282, 5816920), (376, 4362690), (470, 3490152), (564, 2908460), (705, 2326768), (752, 2181345), (940, 1745076), (1128, 1454230), (1410, 1163384), (1880, 872538), (2256, 727115), (2820, 581692), (3760, 436269), (5640, 290846), (11280, 145423)]