1640185840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{20441}}^1$

素因数の和:20530

約数の個数: 80

約数和(自身を含む): 4106388960

約数和(自身を除く): 2466203120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 59, 68, 80, 85, 118, 136, 170, 236, 272, 295, 340, 472, 590, 680, 944, 1003, 1180, 1360, 2006, 2360, 4012, 4720, 5015, 8024, 10030, 16048, 20060, 20441, 40120, 40882, 80240, 81764, 102205, 163528, 204410, 327056, 347497, 408820, 694994, 817640, 1206019, 1389988, 1635280, 1737485, 2412038, 2779976, 3474970, 4824076, 5559952, 6030095, 6949940, 9648152, 12060190, 13899880, 19296304, 20502323, 24120380, 27799760, 41004646, 48240760, 82009292, 96481520, 102511615, 164018584, 205023230, 328037168, 410046460, 820092920, 1640185840]

約数ペア:

[(1, 1640185840), (2, 820092920), (4, 410046460), (5, 328037168), (8, 205023230), (10, 164018584), (16, 102511615), (17, 96481520), (20, 82009292), (34, 48240760), (40, 41004646), (59, 27799760), (68, 24120380), (80, 20502323), (85, 19296304), (118, 13899880), (136, 12060190), (170, 9648152), (236, 6949940), (272, 6030095), (295, 5559952), (340, 4824076), (472, 3474970), (590, 2779976), (680, 2412038), (944, 1737485), (1003, 1635280), (1180, 1389988), (1360, 1206019), (2006, 817640), (2360, 694994), (4012, 408820), (4720, 347497), (5015, 327056), (8024, 204410), (10030, 163528), (16048, 102205), (20060, 81764), (20441, 80240), (40120, 40882)]