81129204

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{757}}^1$

素因数の和:1009

約数の個数: 72

約数和(自身を含む): 222109160

約数和(自身を除く): 140979956

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 229, 234, 458, 468, 687, 757, 916, 1374, 1514, 2061, 2271, 2748, 2977, 3028, 4122, 4542, 5954, 6813, 8244, 8931, 9084, 9841, 11908, 13626, 17862, 19682, 26793, 27252, 29523, 35724, 39364, 53586, 59046, 88569, 107172, 118092, 173353, 177138, 346706, 354276, 520059, 693412, 1040118, 1560177, 2080236, 2253589, 3120354, 4507178, 6240708, 6760767, 9014356, 13521534, 20282301, 27043068, 40564602, 81129204]

約数ペア:

[(1, 81129204), (2, 40564602), (3, 27043068), (4, 20282301), (6, 13521534), (9, 9014356), (12, 6760767), (13, 6240708), (18, 4507178), (26, 3120354), (36, 2253589), (39, 2080236), (52, 1560177), (78, 1040118), (117, 693412), (156, 520059), (229, 354276), (234, 346706), (458, 177138), (468, 173353), (687, 118092), (757, 107172), (916, 88569), (1374, 59046), (1514, 53586), (2061, 39364), (2271, 35724), (2748, 29523), (2977, 27252), (3028, 26793), (4122, 19682), (4542, 17862), (5954, 13626), (6813, 11908), (8244, 9841), (8931, 9084)]