28200080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 68995584

約数和(自身を除く): 40795504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 83, 124, 137, 155, 166, 248, 274, 310, 332, 415, 496, 548, 620, 664, 685, 830, 1096, 1240, 1328, 1370, 1660, 2192, 2480, 2573, 2740, 3320, 4247, 5146, 5480, 6640, 8494, 10292, 10960, 11371, 12865, 16988, 20584, 21235, 22742, 25730, 33976, 41168, 42470, 45484, 51460, 56855, 67952, 84940, 90968, 102920, 113710, 169880, 181936, 205840, 227420, 339760, 352501, 454840, 705002, 909680, 1410004, 1762505, 2820008, 3525010, 5640016, 7050020, 14100040, 28200080]

約数ペア:

[(1, 28200080), (2, 14100040), (4, 7050020), (5, 5640016), (8, 3525010), (10, 2820008), (16, 1762505), (20, 1410004), (31, 909680), (40, 705002), (62, 454840), (80, 352501), (83, 339760), (124, 227420), (137, 205840), (155, 181936), (166, 169880), (248, 113710), (274, 102920), (310, 90968), (332, 84940), (415, 67952), (496, 56855), (548, 51460), (620, 45484), (664, 42470), (685, 41168), (830, 33976), (1096, 25730), (1240, 22742), (1328, 21235), (1370, 20584), (1660, 16988), (2192, 12865), (2480, 11371), (2573, 10960), (2740, 10292), (3320, 8494), (4247, 6640), (5146, 5480)]