80205990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86243}}^1$

素因数の和:86284

約数の個数: 32

約数和(自身を含む): 198706176

約数和(自身を除く): 118500186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 86243, 172486, 258729, 431215, 517458, 862430, 1293645, 2587290, 2673533, 5347066, 8020599, 13367665, 16041198, 26735330, 40102995, 80205990]

約数ペア:

[(1, 80205990), (2, 40102995), (3, 26735330), (5, 16041198), (6, 13367665), (10, 8020599), (15, 5347066), (30, 2673533), (31, 2587290), (62, 1293645), (93, 862430), (155, 517458), (186, 431215), (310, 258729), (465, 172486), (930, 86243)]