20007661504

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401309}}^1$

素因数の和:401381

約数の個数: 56

約数和(自身を含む): 42811750800

約数和(自身を除く): 22804089296

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 152, 164, 304, 328, 608, 656, 779, 1216, 1312, 1558, 2624, 3116, 6232, 12464, 24928, 49856, 401309, 802618, 1605236, 3210472, 6420944, 7624871, 12841888, 15249742, 16453669, 25683776, 30499484, 32907338, 60998968, 65814676, 121997936, 131629352, 243995872, 263258704, 312619711, 487991744, 526517408, 625239422, 1053034816, 1250478844, 2500957688, 5001915376, 10003830752, 20007661504]

約数ペア:

[(1, 20007661504), (2, 10003830752), (4, 5001915376), (8, 2500957688), (16, 1250478844), (19, 1053034816), (32, 625239422), (38, 526517408), (41, 487991744), (64, 312619711), (76, 263258704), (82, 243995872), (152, 131629352), (164, 121997936), (304, 65814676), (328, 60998968), (608, 32907338), (656, 30499484), (779, 25683776), (1216, 16453669), (1312, 15249742), (1558, 12841888), (2624, 7624871), (3116, 6420944), (6232, 3210472), (12464, 1605236), (24928, 802618), (49856, 401309)]