15691662980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{179909}}^1$

素因数の和:180021

約数の個数: 72

約数和(自身を含む): 38763408600

約数和(自身を除く): 23071745620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2492, 3115, 4361, 6230, 8722, 12460, 17444, 21805, 43610, 87220, 179909, 359818, 719636, 899545, 1259363, 1799090, 2518726, 3598180, 5037452, 6296815, 8815541, 12593630, 16011901, 17631082, 25187260, 32023802, 35262164, 44077705, 64047604, 80059505, 88155410, 112083307, 160119010, 176310820, 224166614, 320238020, 448333228, 560416535, 784583149, 1120833070, 1569166298, 2241666140, 3138332596, 3922915745, 7845831490, 15691662980]

約数ペア:

[(1, 15691662980), (2, 7845831490), (4, 3922915745), (5, 3138332596), (7, 2241666140), (10, 1569166298), (14, 1120833070), (20, 784583149), (28, 560416535), (35, 448333228), (49, 320238020), (70, 224166614), (89, 176310820), (98, 160119010), (140, 112083307), (178, 88155410), (196, 80059505), (245, 64047604), (356, 44077705), (445, 35262164), (490, 32023802), (623, 25187260), (890, 17631082), (980, 16011901), (1246, 12593630), (1780, 8815541), (2492, 6296815), (3115, 5037452), (4361, 3598180), (6230, 2518726), (8722, 1799090), (12460, 1259363), (17444, 899545), (21805, 719636), (43610, 359818), (87220, 179909)]