20121817840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{877}}^1\times {\mathrm{4861}}^1$

素因数の和:5810

約数の個数: 80

約数和(自身を含む): 47640209760

約数和(自身を除く): 27518391920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 877, 944, 1180, 1754, 2360, 3508, 4385, 4720, 4861, 7016, 8770, 9722, 14032, 17540, 19444, 24305, 35080, 38888, 48610, 51743, 70160, 77776, 97220, 103486, 194440, 206972, 258715, 286799, 388880, 413944, 517430, 573598, 827888, 1034860, 1147196, 1433995, 2069720, 2294392, 2867990, 4139440, 4263097, 4588784, 5735980, 8526194, 11471960, 17052388, 21315485, 22943920, 34104776, 42630970, 68209552, 85261940, 170523880, 251522723, 341047760, 503045446, 1006090892, 1257613615, 2012181784, 2515227230, 4024363568, 5030454460, 10060908920, 20121817840]

約数ペア:

[(1, 20121817840), (2, 10060908920), (4, 5030454460), (5, 4024363568), (8, 2515227230), (10, 2012181784), (16, 1257613615), (20, 1006090892), (40, 503045446), (59, 341047760), (80, 251522723), (118, 170523880), (236, 85261940), (295, 68209552), (472, 42630970), (590, 34104776), (877, 22943920), (944, 21315485), (1180, 17052388), (1754, 11471960), (2360, 8526194), (3508, 5735980), (4385, 4588784), (4720, 4263097), (4861, 4139440), (7016, 2867990), (8770, 2294392), (9722, 2069720), (14032, 1433995), (17540, 1147196), (19444, 1034860), (24305, 827888), (35080, 573598), (38888, 517430), (48610, 413944), (51743, 388880), (70160, 286799), (77776, 258715), (97220, 206972), (103486, 194440)]