161664080

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 385850304

約数和(自身を除く): 224186224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 97, 166, 194, 251, 332, 388, 415, 485, 502, 664, 776, 830, 970, 1004, 1255, 1328, 1552, 1660, 1940, 2008, 2510, 3320, 3880, 4016, 5020, 6640, 7760, 8051, 10040, 16102, 20080, 20833, 24347, 32204, 40255, 41666, 48694, 64408, 80510, 83332, 97388, 104165, 121735, 128816, 161020, 166664, 194776, 208330, 243470, 322040, 333328, 389552, 416660, 486940, 644080, 833320, 973880, 1666640, 1947760, 2020801, 4041602, 8083204, 10104005, 16166408, 20208010, 32332816, 40416020, 80832040, 161664080]

約数ペア:

[(1, 161664080), (2, 80832040), (4, 40416020), (5, 32332816), (8, 20208010), (10, 16166408), (16, 10104005), (20, 8083204), (40, 4041602), (80, 2020801), (83, 1947760), (97, 1666640), (166, 973880), (194, 833320), (251, 644080), (332, 486940), (388, 416660), (415, 389552), (485, 333328), (502, 322040), (664, 243470), (776, 208330), (830, 194776), (970, 166664), (1004, 161020), (1255, 128816), (1328, 121735), (1552, 104165), (1660, 97388), (1940, 83332), (2008, 80510), (2510, 64408), (3320, 48694), (3880, 41666), (4016, 40255), (5020, 32204), (6640, 24347), (7760, 20833), (8051, 20080), (10040, 16102)]