178877140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2677}}^1$

素因数の和:2956

約数の個数: 48

約数和(自身を含む): 406263312

約数和(自身を除く): 227386172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 2677, 3341, 5140, 5354, 6682, 10708, 13364, 13385, 16705, 26770, 33410, 34801, 53540, 66820, 69602, 139204, 174005, 348010, 687989, 696020, 1375978, 2751956, 3439945, 6879890, 8943857, 13759780, 17887714, 35775428, 44719285, 89438570, 178877140]

約数ペア:

[(1, 178877140), (2, 89438570), (4, 44719285), (5, 35775428), (10, 17887714), (13, 13759780), (20, 8943857), (26, 6879890), (52, 3439945), (65, 2751956), (130, 1375978), (257, 696020), (260, 687989), (514, 348010), (1028, 174005), (1285, 139204), (2570, 69602), (2677, 66820), (3341, 53540), (5140, 34801), (5354, 33410), (6682, 26770), (10708, 16705), (13364, 13385)]