20343841720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{887}}^1\times {\mathrm{15497}}^1$

素因数の和:16432

約数の個数: 64

約数和(自身を含む): 47066806080

約数和(自身を除く): 26722964360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 887, 1480, 1774, 3548, 4435, 7096, 8870, 15497, 17740, 30994, 32819, 35480, 61988, 65638, 77485, 123976, 131276, 154970, 164095, 262552, 309940, 328190, 573389, 619880, 656380, 1146778, 1312760, 2293556, 2866945, 4587112, 5733890, 11467780, 13745839, 22935560, 27491678, 54983356, 68729195, 109966712, 137458390, 274916780, 508596043, 549833560, 1017192086, 2034384172, 2542980215, 4068768344, 5085960430, 10171920860, 20343841720]

約数ペア:

[(1, 20343841720), (2, 10171920860), (4, 5085960430), (5, 4068768344), (8, 2542980215), (10, 2034384172), (20, 1017192086), (37, 549833560), (40, 508596043), (74, 274916780), (148, 137458390), (185, 109966712), (296, 68729195), (370, 54983356), (740, 27491678), (887, 22935560), (1480, 13745839), (1774, 11467780), (3548, 5733890), (4435, 4587112), (7096, 2866945), (8870, 2293556), (15497, 1312760), (17740, 1146778), (30994, 656380), (32819, 619880), (35480, 573389), (61988, 328190), (65638, 309940), (77485, 262552), (123976, 164095), (131276, 154970)]