30941560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 75650400

約数和(自身を除く): 44708840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 379, 520, 628, 758, 785, 1256, 1516, 1570, 1895, 2041, 3032, 3140, 3790, 4082, 4927, 6280, 7580, 8164, 9854, 10205, 15160, 16328, 19708, 20410, 24635, 39416, 40820, 49270, 59503, 81640, 98540, 119006, 197080, 238012, 297515, 476024, 595030, 773539, 1190060, 1547078, 2380120, 3094156, 3867695, 6188312, 7735390, 15470780, 30941560]

約数ペア:

[(1, 30941560), (2, 15470780), (4, 7735390), (5, 6188312), (8, 3867695), (10, 3094156), (13, 2380120), (20, 1547078), (26, 1190060), (40, 773539), (52, 595030), (65, 476024), (104, 297515), (130, 238012), (157, 197080), (260, 119006), (314, 98540), (379, 81640), (520, 59503), (628, 49270), (758, 40820), (785, 39416), (1256, 24635), (1516, 20410), (1570, 19708), (1895, 16328), (2041, 15160), (3032, 10205), (3140, 9854), (3790, 8164), (4082, 7580), (4927, 6280)]