20199541670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1\times {\mathrm{457}}^1$

素因数の和:1038

約数の個数: 128

約数和(自身を含む): 45870935040

約数和(自身を除く): 25671393370

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 137, 154, 274, 385, 419, 457, 685, 770, 838, 914, 959, 1370, 1507, 1918, 2095, 2285, 2933, 3014, 3199, 4190, 4570, 4609, 4795, 5027, 5866, 6398, 7535, 9218, 9590, 10054, 10549, 14665, 15070, 15995, 21098, 23045, 25135, 29330, 31990, 32263, 35189, 46090, 50270, 52745, 57403, 62609, 64526, 70378, 105490, 114806, 125218, 161315, 175945, 191483, 287015, 313045, 322630, 351890, 382966, 401821, 438263, 574030, 626090, 631433, 688699, 803642, 876526, 957415, 1262866, 1340381, 1377398, 1914830, 2009105, 2106313, 2191315, 2680762, 3157165, 3443495, 4018210, 4212626, 4382630, 4420031, 4820893, 6314330, 6701905, 6886990, 8840062, 9641786, 10531565, 13403810, 14744191, 21063130, 22100155, 24104465, 26233171, 29488382, 44200310, 48208930, 52466342, 73720955, 131165855, 147441910, 183632197, 262331710, 288564881, 367264394, 577129762, 918160985, 1442824405, 1836321970, 2019954167, 2885648810, 4039908334, 10099770835, 20199541670]

約数ペア:

[(1, 20199541670), (2, 10099770835), (5, 4039908334), (7, 2885648810), (10, 2019954167), (11, 1836321970), (14, 1442824405), (22, 918160985), (35, 577129762), (55, 367264394), (70, 288564881), (77, 262331710), (110, 183632197), (137, 147441910), (154, 131165855), (274, 73720955), (385, 52466342), (419, 48208930), (457, 44200310), (685, 29488382), (770, 26233171), (838, 24104465), (914, 22100155), (959, 21063130), (1370, 14744191), (1507, 13403810), (1918, 10531565), (2095, 9641786), (2285, 8840062), (2933, 6886990), (3014, 6701905), (3199, 6314330), (4190, 4820893), (4570, 4420031), (4609, 4382630), (4795, 4212626), (5027, 4018210), (5866, 3443495), (6398, 3157165), (7535, 2680762), (9218, 2191315), (9590, 2106313), (10054, 2009105), (10549, 1914830), (14665, 1377398), (15070, 1340381), (15995, 1262866), (21098, 957415), (23045, 876526), (25135, 803642), (29330, 688699), (31990, 631433), (32263, 626090), (35189, 574030), (46090, 438263), (50270, 401821), (52745, 382966), (57403, 351890), (62609, 322630), (64526, 313045), (70378, 287015), (105490, 191483), (114806, 175945), (125218, 161315)]