20813542740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{71333}}^1$

素因数の和:72969

約数の個数: 72

約数和(自身を含む): 63174246408

約数和(自身を除く): 42360703668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1621, 3242, 4863, 6484, 8105, 9726, 14589, 16210, 19452, 24315, 29178, 32420, 48630, 58356, 71333, 72945, 97260, 142666, 145890, 213999, 285332, 291780, 356665, 427998, 641997, 713330, 855996, 1069995, 1283994, 1426660, 2139990, 2567988, 3209985, 4279980, 6419970, 12839940, 115630793, 231261586, 346892379, 462523172, 578153965, 693784758, 1040677137, 1156307930, 1387569516, 1734461895, 2081354274, 2312615860, 3468923790, 4162708548, 5203385685, 6937847580, 10406771370, 20813542740]

約数ペア:

[(1, 20813542740), (2, 10406771370), (3, 6937847580), (4, 5203385685), (5, 4162708548), (6, 3468923790), (9, 2312615860), (10, 2081354274), (12, 1734461895), (15, 1387569516), (18, 1156307930), (20, 1040677137), (30, 693784758), (36, 578153965), (45, 462523172), (60, 346892379), (90, 231261586), (180, 115630793), (1621, 12839940), (3242, 6419970), (4863, 4279980), (6484, 3209985), (8105, 2567988), (9726, 2139990), (14589, 1426660), (16210, 1283994), (19452, 1069995), (24315, 855996), (29178, 713330), (32420, 641997), (48630, 427998), (58356, 356665), (71333, 291780), (72945, 285332), (97260, 213999), (142666, 145890)]