29121040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28001}}^1$

素因数の和:28027

約数の個数: 40

約数和(自身を含む): 72917208

約数和(自身を除く): 43796168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 28001, 56002, 112004, 140005, 224008, 280010, 364013, 448016, 560020, 728026, 1120040, 1456052, 1820065, 2240080, 2912104, 3640130, 5824208, 7280260, 14560520, 29121040]

約数ペア:

[(1, 29121040), (2, 14560520), (4, 7280260), (5, 5824208), (8, 3640130), (10, 2912104), (13, 2240080), (16, 1820065), (20, 1456052), (26, 1120040), (40, 728026), (52, 560020), (65, 448016), (80, 364013), (104, 280010), (130, 224008), (208, 140005), (260, 112004), (520, 56002), (1040, 28001)]